Hi Constantin, welcome to OSM,

just some notes:
https://www.openstreetmap.org/way/1149616202
https://www.openstreetmap.org/way/439330256

adding a name isn't enough, for example to map a In's Mercato you need to add shop=supermarket

https://www.openstreetmap.org/relation/15535176
this relation is unnecessary, I guess you created it by mistake

thanks for the edits and good mapping :)