I've had my own domain for ~20 years, first on Google Apps for Domains -> GSuite -> Google Workspaces (or whatever their naming changes have been), and moved over to Fastmail a few years ago.

Fastmail's spam filtering isn't as good as Googles, but has fewer false-positives, and the spam it does let through is trivially manageable. I did host my own mail server for a year or so prior to using Google, but I agree dealing with spam filter configuration and tuning was a headache, and I gave up. Nowadays I can only assume it's even harder to run your own email server, so I'd never recommend anyone do that when there are options for other people to do it for you.

I occasionally get a confused customer support person on the phone when I need to give them my email address, but they understand in about 7 seconds and it's no big deal.