Issues on split screen on Xbox Series X

For a long while - across several versions of the game - local split screen has been semi broken on the Series X / Series S

If I play with my 2 daughters, we have to make the same song and dance when playing the game:

1. If we are all logged in on the console with controllers before starting up the game, I can’t control anything in the menus. We have to log everyone out except the “leader” and start the game in one of the local worlds, and only after the world has loaded can the other players log in and join the game. This is rather annoying, but…

2. If the “leader” tryes to “save and exit” the game while everyone else is still logged in, the save screen does nothing and simply moves nowhere. All changes are lost! We have to ensure everyone but the “leader” logs out before the “leader” saves and exits. Seems again unnecessarily complicated, buggy and game breaking.