This was too late for me. I migrated to fastmail.com. There are some negative reviews online, but it seems fine to me. I do the email for 6 family users, and protonmail's pricing just didn't work - once you have more than 5 users you have to go to a higher plan. I also have a bunch of domains that the family use. Not sure why they restrict that, is it much more costly for them if I have 10 domains than 3? The migration process to fastmail was very easy - my 80 year old mum managed it. I looked at some other providers, notably Tutanota, which appealed to me, but then found they didn't have an import feature. When they get one, I'd be happy to reconsider.

I use a windows machine for work, but our CI pipelines are all running on Linux, and we deploy everything to Linux servers. At home I only use Linux machines and I've never had a problem developing or running dotnet core applications. I don't have experience with coding for android so I can't comment on that. Which distros specifically do you think have problems with it?