To me it looks like Esri World Imagery is the most up to date, but yeah, a bit offset and not the best quality.

If you can't trace the building you can just add a single node for the shop, and the building can be traced later.

I'd add the following tags at least:

brand:wikidata=Q151954
brand:wikipedia=en:Lidl
brand=Lidl
name=Lidl
shop=supermarket