You could also upload pictures directly to Panoramax and add automaticallay the panoramax tag with MapComplete.

The main issue for me is that MapComplete don't use multivalues but tag suffixes panoramax:0, panoramax:1…

https://mapcomplete.org/aed.html?z=15.4&lat=46.35524585107515&lon=3.590624997621717#node/11434538468
