The Hobbyist

To answer your question more specifically, most people set up the pi with docker, using services which have a front end accessible in the browser. They basically use their browser to navigate to the front end of the service they want to use and administer it like that. For instance portainer to manage their docker containers, or pihole for managing their firewall, or even jellyfin for their media which is both the website to consume the media and has an administrator dashboard.

Edit: this is in complement to using something like tailscale which basically allows you to access these services away from home. They work in conjunction.

Tailscale is a good option.

Edit: I’m assuming you mean away from home, but if you mean in your local network just use SSH?