> can’t be bothered to host my own email
Never host your own email. It’s a nightmare if legacy systems, edge cases, layered on trust systems, malicious actors, and endless spam. It’s a good way to spend a bunch of time and effort making sure most of your mail never gets delivered.
All of these things mean that email is no longer fit for purpose.
I host a few of my own domain emails using mailu (a system of docker containers), but not my primary (so I'm slightly hypocritical). It's a certain amount of hassle, but as long as you do the SPF and DKIM things, it seems to work pretty well for me (in the limited amount that I use these domains for email).
On the other hand, I've been hosting my own E-mail (exim and dovecot) on a $5 VPS for the past 15 or so years, and it's pretty much set and forget. The most maintenance I have to do is when certbot fails to renew my ssl certificates and I have to manually go in and babysit it, but that's certbot/LetsEncrypt's fault, not the E-mail software. I have maybe had deliverability problems twice in those many years.