Okay - thank you for the quick reply!
All those workarounds I have already used - but it makes me not happy - I am feeling now like a Windows user: Have to do a lot of ineffective handling which cost me a lot of useless time ...
Please talk to Apple that they will get better with Fotos soon!
I have used Photoshop together with Aperture - Aperture supports the drag to Affinity and I can store back into the same location.
Apple is seeing Fotos as a replacement for Aperture too - so they should be interested to get their users pleased with Fotos.
In fact I would say that Mac OS X users are more professional that IOS or Windows users. They should take care.
I try to address this in Apple support too.