What’s your hoster?

It’s a rather standard feature. Hardware and software have to be built/configured right for it to work well. That’s what Valve did. I don’t think there is any special sauce involved software wise.

If you use osmand for navigation you can use that to view your tracks, too.

Nope. They are similar, but not the same: Comparison

• Nextcloud
• Mumble
• Mail (postfix/dovecot), though I regret that I did, cause running your own mail server is a PITA