Proton has servers in both Russia and Ukraine, and neither means Proton has ties with their governments. If you want to expand an Israel boycott to anyone doing business with any company from Israel then ok, but the word "ties" seems to imply some involvement or complicity with a government/regime/ideology, like they are connected to anything said place is doing.

I’m here saying Proton has servers in 127 countries and they are widely different, so how do you decide to which ones they are "tied" (protip: They are tied to none, getting an exit node in a country benefit users from the countries next to it, and it also opens that country's geolocked content to the world). Get a brain.