Win 11: I fail to get the desired thumbnail-size

[paul_sch]

In Win 10, everything was simple and perfect: I specified the thumb-size in the settings, and the thumbs hat exactly this size, crisp and sharp.

Now I moved to Win 11, and I spent around 45 min trying to get the same thumbnail-size as before. It should be easy, because I could duplicate all my settings. However, the thumbnails were much too small. I confirmed with with screenshot & measuring. I can change the size with a slider at the bottom, but it seems impossible to adjust it to get the specified size exactly.

I even tried playing with the Windows high-dip-settings for the app, no change.

So, how is it possible to simply get my thumbnails exactly 160 x 160 px, as before, crisp and sharp? I never want them smaller or bigger. Just 160 x 160. That's why I specified the size. Shouldn't that be possible AND simple? Is it windows's fault? Nevertheless, I'd like a solution.

[user0]

there is an issue with hidpi scaling:
1.9.1 - browser - thumbnails - fix scaling

however, it does not affect thumbnails quality:
XnViewMP - thumbnails - understanding quality/size