User profile page got an update this month. They now show your achievements and gamerscore, as well as a few other stats. There's a link to Steam too.
You can edit the page, so you can add information about yourself, links to your friend's brother's discord etc.
These pages follow your Steam profile settings. If you have a vanity url set on Steam - it'll copy that, and your page will be accessible via that url, if not, it'll use your SteamId. If your steam profile is private, then your s&box profile will copy that setting too.
