Maybe Linux users turn off telemetry?

Right, I forgot about that...

I'm in the same situation, and I'm now seriously considering going all full Infomaniak which has a very good reputation for hosting and privacy. They have a whole suite like Google and even better than Proton's. Mail, drive, office.... Free for up to 15GB then pretty cheap for more. They are in Switzerland and I believe the law there is protective, making the whole service pretty trustworthy imo.