I also can't stand Android preventing me from taking a screenshot. It's on my screen, I have the right to take a screenshot.

I understand the technical limit of taking screenshots of DRM-protected content (e.g. Netflix), but why would my bank app be allowed to stop me from taking screenshots?

The MacOS built-in screenshot tool has an optional "timed delay" feature, where you can click "screenshot in 5 seconds". With that time, you can open menus, or do anything that requires events to be processed by the application. Very handy for screenshots that require something to be clicked on.