Please pay attention to context and sideffects of your edits:
https://tools.geofabrik.de/osmi/?view=areas&lon=-65.50422&lat=44.73328&zoom=16&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Ich habe den Namen lediglich von der Vorgänger-Flächenrelation übernommen: https://overpass-turbo.eu/s/1mcY

Die Fläche war als Multipolygon als landuse=farmland (Acker) eingetragen:
http://overpass-turbo.eu/?Q=%5Bout%3Axml%5D%5Bdate%3A%222022-04-06T00%3A00%3A00Z%22%5D%3B(relation(5497228)%3B%3E%3B)%3Bout%20meta%20qt%3B&C=47.3812;8.01598;17&R.
Nach meiner Erinnerung wollte ich das dem Luftbild entsprechend zu landuse=meadow (Wiese) ändern.

Auf quarry wäre ich niegekommen, Was wird denn da abgebaut?

When do you plan to fix/finish?
https://tools.geofabrik.de/osmi/?view=areas&lon=8.29293&lat=46.58528&zoom=16&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Something went wrong here:
https://tools.geofabrik.de/osmi/?view=areas&lon=-75.65626&lat=45.44129&zoom=15&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways%2Cduplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Why did you delete the outer member from these multipolygons?
https://osm.mapki.com/history/relation/11131522
https://osm.mapki.com/history/relation/11198161
https://osm.mapki.com/history/relation/216097

Warum eine Relation relation/14546367 als Sammlung von Zaunabschnitten? Wenn zwingend, warum eine
boundary-Relation, welches Objekt soll die Relation abgrenzen? Und was hat die Routen-Relation relation/14546366 darin zu suchen?
Wobei diese Routenrelation gar keine Route ist, sondern nur eine Sammlung von einzelnen Wegabschnitten ist. Was auch für die Relation relation/14546365 zutrifft.
Und bitte beachte osm.wiki/DE:Namen#name_ist_nur_der_Name

Two different features at same position:
way/295525073#map=17/49.18454/-121.68698https://www.openstreetmap.org/way/1090883560#map=17/49.18454/-121.68698

Das ist irgendeine Ralation, aber bestimmt kein multipolygon:
relation/14534423
https://tools.geofabrik.de/osmi/?view=areas&lon=12.78331&lat=50.85215&zoom=18&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=intersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Wenn verbessern, dann bitte konsequent: https://tools.geofabrik.de/osmi/?view=areas&lon=12.13645&lat=51.13595&zoom=14&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=duplicate_node%2Csingle_node_in_way%2Cduplicate_segment%2Cway_in_multiple_rings%2Cintersection%2Cintersecting_segments%2Cring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

Bitte sauberer zeichnen, sonst können die Flächen nicht gerendert werden
https://tools.geofabrik.de/osmi/?view=areas&lon=8.52116&lat=48.18347&zoom=14&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=intersection%2Cintersecting_segments%2Cways

Gehören die inner-Flächen tatsächlich nicht zum Campingplatz?
relation/14448193#map=17/54.33665/9.96082

Was ich bemerkt habe ist, dass Du bei der Behebung alter Fehler neue produziert hast.

Bitte Fehler beheben:
https://tools.geofabrik.de/osmi/?view=areas&lon=13.54598&lat=52.37302&zoom=13&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=duplicate_node%2Csingle_node_in_way%2Cring_not_closed%2Cways
relation/2411892#map=13/52.3644/13.4958

Why di you remove outer members from grass multipolygons?
https://tools.geofabrik.de/osmi/?view=areas&lon=-72.48873&lat=45.90265&zoom=15&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=ring_not_closed%2Ctouching_rings%2Crole_should_be_inner%2Crole_should_be_outer%2Cinner_with_same_tags%2Cways

A multipolygon represents a surface and may only contain simple areas (closed rings). Linear objects like highways must not be included. You should have received a warning from your editor.
relation/12625192

I don't understand your problem with the result of my editing. As before, there are four buildings that can be represented as simple closed ways.

It doesn't make sense to split up these closed rings only to build relations around them again so later users like area renderers can build simple rings again.

The simple ways are easier and safer to maintain and consume fewer resources for data storage, data retrieval and further processing.

Openstreetmap is a worldwide project and I don't see why I shouldn't be active worldwide as well. Why local knowledge should be necessary for fixing geometric problems I don't understand either.

Translated with www.DeepL.com/Translator (free version)

Bitte sei gerade als Anfänger vorsichtiger mit deinen Bearbeitungen. Offensichtlich ist dir nicht bewusst, was Du mit unbedachten Löschungen anrichten kannst: https://tools.geofabrik.de/osmi/?view=areas&lon=8.56579&lat=47.91637&zoom=13&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=ring_not_closed%2Cways

Es is ja gut, dass Du JOSM verwendest, aber benutze dann auch dessen Validator. Der hätte dir die gezeigten Fehler vor dem Hochladen angezeigt.

P.S.
Eine Openstreetmap-Karte als Datenquelle für Änderungen von OSM-Daten anzugeben, ergibt keinen Sinn.

Gibt es einen bestimmten Grund dafür, dass Du aus dem residental-Multipolygon den äusseren Umriss entfernt hast und die verstümmelte Relation übrig lässt?
https://osm.mapki.com/history/relation/12990722
https://tools.geofabrik.de/osmi/?view=areas&lon=8.77700&lat=50.77767&zoom=15&baselayer=Geofabrik%20Standard&opacity=0.95&overlays=role_should_be_outer%2Cways

Please fix https://tools.geofabrik.de/osmi/?view=areas&lon=-62.58266&lat=45.67293&zoom=16&opacity=0.95