Proton are very transparent about what data is and isn’t stored, how data is protected and what (very limited) data may be available in the event of a legal warrant - going through all the proper channels.
Complying with legal warrants doesnt make the service insecure or not private. It makes it a legal and legitimate company.
It shouldn’t really be a surprise to any of it’s users.
Does this really work? I have a little windows miniPC that runs some home services. And I hate that it just updates and reboots (or sometimes just ends up shutting down) whenever it’s feels like it. I don’t have the energy at the moment to clear it down and rebuild from scratch with Linux so this update blocker sounds bloody amazing.