Just in case, perhaps one can get away with dynamic DNS sort of pseudo domain, not a full domain, so that you can access services you host at home, without having to know the IP. At any rate, whether pseudo DDNS or full DNS, the IP is fully recognizable.

The advantage of a VPS might be some protection against home blackouts and internet lost every now and then, depending where you live. However, self hosting poses several issues. Isolating your network (firewalls plus kernel hardening), hardening the servers,protect against common attacks such as denial of services, as well as infiltrating the services. All than not to mention dealing with spam and much more.

However, I'm tending towards the idea the we have to self host, now a days. Trusting providers is not wise. Granted email is not secure, neither private, however the same applies to other services. FB is even looking at ways to extract information from whatsapp without decrypting messages... Signal leaks quite some information about its users, and though the advertise themselves about not able to decrypt messages, they can and probably do share all metadata they grab.

I'd really like distributed mechanisms, to take over, and become mainstream, not just decentralized, because then there are no servers to depend upon, and the information is just shared among those whom the information was generated for, no trusting in servers, not even your own.