There is really no benefit to self-hosting for an individual's basic productivity tools. Just back up your files. When your managed hoster becomes insufferable,

There is really no benefit to self-hosting for an individual's basic productivity tools. Just back up your files. When your managed hoster becomes insufferable, upload your backed-up files to a new managed hoster. You will spend 100x more time (and money) curating your self-hosted thing than just backing up and uploading once or twice in your lifetime. I have switched email providers 3 times in 25 years. With the last one, I bought a domain and pay for custom domain hosting. I don't have to think about my e-mail again until the next time I switch in 10 years. When I switch, I'll just sign up for the new provider and sync my IMAP folder over, change MX records, and boom: done. No paying for a VPS, no maintaining software patches or server or network issues, no e-mail administration or web interface administration or dealing with spam or IP reputation or anything else. It's all taken care of.