No it doesn't. You can use free Gmail with IMAPS & GPG-encrypt all your messages if you want to. I don't know why you're spreading lies, other than you're just too oblivious to know better.
This is the dumbest argument. You can't create a Proton account without non-free JS either. Once you enable IMAP in Gmail, you don't have to sign in using the browser. Are you really going to argue this? I mean, you can just admit you don't know enough about security and that you trust Proton just cause they make you feel warm & fuzzy or whatever.
I don't use or trust Proton either. My point was that when you use gmail you are giving up additional data and your freedom.
The best answer is to use an email provider that doesn't force you to use non-free software. There a limited few that work with HTML or properly licensed JavaScript