Go on give us just one example of Google killing someone's account due to email content.
So we can't prove it was due to email content. For all we know it could just be a dude named Richard who throws darts at a board full of usernames all day.
I've been using gmail for my domain (free gsuite legacy) for 10+ years though I'm careful to not do anything that could be misinterpreted on the service particularly through google photos or youtube
I actually used fastmail for 10 years prior to gmail but abandoned it in 2010 or so because imap/calendaring/etc. wouldn't meaningfully sync with my iphone but gmail had full free activesync (which I still miss a bit...)
I still keep a basic inexpensive legacy fastmail account just for some sieve scripts and cleaner smtp than gmail offers...