To prevent unwanted usage of that auth mode is a thing.
To prevent it for good with the excuse of security is pure BS.
That's what real life users need in real world.
That's the kind of things that turns people away from a usable platform.
I built an app to be used by accountless guests, to be used with a specific, limited rights, service/shared user, and now I can't use it because of narrow minded devs @ MS.
If I launch it from Desktop frontend in W10 kiosk mode, it will retain the account, but it will allow users to close the app and frustrate next user.
If I launch it from web, I can hide the bar, but I need to manually insert the login data every now and then.
The more I search on the topics, the more I realize I wasted months of development.
That's somewhat frustrating.
It's clear I'll have to look away from MS.
Power Platform is just for crappy SMBs, not Enterprise ready.