I did the same thing a few weeks ago and it worked well, Fastmail's documentation was also really good. I'd recommend setting up your own domain for email with

I did the same thing a few weeks ago and it worked well, Fastmail's documentation was also really good. I'd recommend setting up your own domain for email with Fastmail too since it makes it easy to move later. Fastmail also lets you create aliases for individual accounts, I've used that to group together less trustworthy services. The biggest time sync was moving all existing accounts from Gmail over to Fastmail. Luckily I use a password manager so they were at least all in one place, but it still took about a day of tedious effort. What's worse is a lot of sites are just broken. They don't let you change your email or account name, they make you contact support to do it, etc. If you're in California you can at least file a CCPA request to force them to delete your account.