I use them as a DDNS, and a first line of defence.

It seems very wasteful, doesn’t it?
The truth is that I often need to access these from a device that doesn’t have local access to the server, such as a company laptop, or a phone on mobile network.
This is also given for anyone outside of my house.
As such, I often don’t bother setting up local access, except for specific services that are critical or use a lot of bandwidth that can go locally.

Not to mention password and bookmark management, which is a little part, but it can get out of hand (I have about 50 services/front-ends).

TLDR: Your can use cloudflare or alternatives with fallback on local for most services, if you set it up that way