"Roskomnadzor said that ProtonMail had refused to provide Russian authorities with information on the owners of email accounts allegedly associated with fake bomb threats." I know ProtonMail is denying they got requests but hopefully this is a good advertisement for their willingness to protect individuals.
And if those bomb threats proved right and people get killed? Would you still praise Proton for not working with Law enforcement?
But I have little confidence that surveillance requires warrants, or that warrants are only issued with valid probable cause of real crimes, and not against dissidents, journalists, political adversaries and business competitors.
Therefore, ProtonMail's only moral and ethical response is to refuse to cooperate with Russia's law enforcement.
The same would be true in China if ProtonMail was available there.
And given what we now know about the US, UK, Canada, Australia and New Zealand, I'd have to say they've become more like Russia than most care to contemplate.