I was able to reproduce the issue on the sample project in question for macOS 26.0 when running as Mac - "Designed for iPad". On macOS 26.1 the issue is gone. BTW. If I run as (real) Mac the issue does not show up in neither version. But the app looks different of course.

Yes, this looks like the same issue I've faced for all kinds of image pickers on macOS 26.0. And, yes, the issue is gone on macOS 26.1.