Search for Permission Manager

You get a list of permissions, and can check apps that are approved or not.
In each permission list the 3dots icon in the upper right will toggle system apps visible or not.

Can tell from a glance, it’s way too complicated and powerful to be a Keep alternative.

They don’t support Rump.
During his first term, Protons president said one specific thing Rump did isn’t automatically terrible for everyone, it may help Proton and other small online providers. And he was right at the time. That’s as close as anyone at Proton ever got to saying anything nice about Rump.

Proton realy is the best you’ll find out there. None of the others are very close yet.