Where do we report bugs about features in the macOS TV app that just don't work?

For example, when making a new Smart Playlist the "Is 4K" rule doesn't do anything, and there is no corresponding "Is HD" rule. There is also no way to check the dimensions of video to figure this out automatically.

The "Video Quality" rule is not explained anywhere that I can find. Is that supposed to related to Bitrate? The Help system for editing Smart Playlists does not work. I get a "The selected content is currently unavailable" error.

We shouldn't have to hit the menu for Show Filter Field every time we want to search our own Library. That's pretty insulting. Many of us have libraries with hundreds or even thousands of movies and tv shows that we bought outside the iTunes Store.

Multi-part TV Shows do not stay together if you Group them, and then shuffle play a playlist of those shows.

Why can we still not simply shuffle play Movies or TV Shows within a Series, other than by creating playlists?

And why are the macOS TV app and the Apple TV Computers app still not in sync regarding which aspect ratio art is used, and how playlists are sorted?