The web app on your server is not recent enough to have the new features.
You have to wait for an updated server version which includes at least version v3.77.2 of the web app.
Are you saying that the web app on my server is not recent enough and is blocking my own domain or that I shouldn’t have Tidal and Web Shows? Because I certainly have those on my server and I can click on them from the player menu, but only when I use https://app.plex.tv. If I try to use my own domain they don’t even appear in the as options in settings or in the player menu.
It is not blocking anything. It simply hasn’t the necessary code to support these features yet.
The ‘hosted’ web app is usually several version numbers ahead of the ‘local’ web app, that gets included with the server software.
If you want to use these new features in the web app, you have to use the ‘hosted’ version until your server has been updated.