Most people find the user experience of self-signed certificates much worse. The developer experience for local issuance isn't great, although mkcert does a really great job of smoothing the parts that can be smoothed[1].

[1]: https://github.com/FiloSottile/mkcert

I started but haven't yet completed a project to use mkcert on a home server, and get all devices in the house to trust it as a CA for things such as printers and "internal tools" for my family such as Jellyfin, etc.

This would probably be easier if I was organized enough to use at least minimal MDM features on the family's devices though, so I haven't actually completed this project yet.