gmail -> proton or tuta if you don't care about IMAP, or any other decent email provider (I use disroot, I set my brother up with mailfence, they both seem quite good. I use them with thunderbird)
pycharm -> not an IDE, but I like VSCodium (vscode without MS)
also, check out some of the firefox forks. I personally really like Floorp since it lets me put the tab bar at the bottom and customise the UI! Librewolf is also decent but some of its privacy anti-fingerprinting stuff makes it a bit annoying to use
oh that’s sad. I mostly switched out of proton bc I didn’t want to put all my eggs in one basket. Also, not having IMAP sucksss because both the official proton and tuta apps are SLOW