Hello, there is a annoying bug, that drives me crazy.
If you setup the UI-size to position 1 in the preferences, InDesign can’t remembers the window size correctly (see. video).
When I’m in the presentation mode (shift w) and after I left it, the app window of InDesign is resizing small (or another wrong size).
If you change the UI-size back to position 2 (standard setting) this bug doesn’t happening. I checkt it again and again.

And it only happens when the two 27" 4K displays are connected.
I’m working on a MacBook Pro 16" M1 Pro in MacOS Ventura.

I also cleared the cache and preferences, deleted InDesign and restarted the machine many times.

I attached a short video and screenshots.

Best
Sascha