I moved to ProtonMail (from G-Suite) and I'm pretty happy overall. Their Unlimited offering is interesting as it includes VPN, storage and calendar.
The few things I dislike about ProtonMail is the search and the fact they don't have the email client app on F-Droid. If you decide to move to Proton, I would advise against importing all your emails (maybe just the last X months). Keep a local backup of all your emails to search them, that worked the best for me and avoided cluttering my new email box.
The few things I dislike about ProtonMail is the search and the fact they don't have the email client app on F-Droid. If you decide to move to Proton, I would advise against importing all your emails (maybe just the last X months). Keep a local backup of all your emails to search them, that worked the best for me and avoided cluttering my new email box.