And years of not fully supporting Linux.
Another way to put that is actively pushing/encouraging their "privacy concious" clients onto windows spyware if they want to get the service they paid proton for. Can't be private on windows folks.
Not privacy focused at all IMO, its all privacy theatre and proton is just money focused.
Seems to be doing it in the relevant community in an unobtrusive manner... I don't see an issue with getting the word out like this to like minded people