Using a password manager made this much easier, as I could easily keep track of which accounts I needed to update and which ones I still needed to do. I switched over to Fastmail and haven’t looked back.
I had heard good things about Fastmail from other GMail switchers and signed up for their free trial account, and liked the experience.
The mobile app is great, they support 2FA with hardware security keys, and the price seemed reasonable.
Also the web app is really good. Like really really good. And I don't normally like web apps.
I don't see why not; I think that overall FastMail is easier to use than gmail for example. It's not like you need to use a custom domain and all these things.
Once you have a custom domain, it becomes way easier to change to another email service without losing any messages.
Everything just forwards to my Gmail address. I have a personal domain which is also setup as an outbound address. Several other domains/addresses also forward. I also do a wildcard *@something.example.org which I use for accounts/signups (unique email per site), which lets me track who's selling my address (or is breached) and has some other security benefits.
I had a Gmail as my primary for over 10 years, did exactly this for 3 years, and now I’ll get maybe 2-3 junk notices per year to my old Gmail.