The issue that you have with Protonmail seems to be that they enabled IP logging in response to a lawful government request. Google logs IP by default, scans your messages, etc. It baffles me that there is less outrage at that than this single case.
I agree, it's non-trivial and perhaps my comment came across in a negative light. But, I think people are overstating the implication of the issue at hand - especially when you compare Protonmail (and others) to the big providers such as Google and Microsoft.
So in case the government is out to get you, both options will lead to the same outcome: your IP address is revealed.
You could literally change to Fastmail and cancel your Gmail account before tomorrow.
There are hundreds of excuses for not switching from Google or for staying on Facebook etc. But only one outcome: action.
To start with, I forwarded all my Gmail to Outlook.com. As email came in and I read it, I would log into the site that sent it and change my email in there. As time went on, things slowly migrated out of Gmail. I told friends and family I was switching my email address but fortunately for me basically no human ever emails me. The few that do, I can receive the email at Gmail and send a response from Outlook so they get the update.
Now I'm about 99% migrated over, and the few stragglers that still send to Gmail make it to my new inbox anyway so I'm never missing anything.
If you are concerned about privacy, you shouldn't be on Google at all. Move to almost any other provider and you are already a step ahead in terms of privacy.
You aren't going to get absolute privacy in a single step, if ever. You do the best you can, iterate, and do better. Moving away from Google is step 1. Step 2 is to continue research, and potentially move again if it fits your threat model.