My xbox series x won't connect to xbox networks. I can't access the store, and I can't play...

So I can't even play the game on my Xbox series X controller without the guitar also I can't play the disc version on my Xbox series X

This has nothing to do with sharing. If you buy a series X and buy a disk with no connection to the network you can't play. Period.

I own the game on the Xbox series x but it won't allow me to connect the game to my profile which is on the Xbox series x and so it does not let me play online, If that makes sense.

I'm playing on Xbox series x. No problem playing games on multiplayer with good internet connection. But for some reason I can't get gamepass to load.

I just bought a brand new Xbox One X, but when I go to the store, Flight Simulator and other Xbox Series X/S games say they are "not playable on this device" and I can't get Flight Simulator to install on my brand new Xbox One X because it says it's "not compatible". Very frustrating.

So you bought an Xbox One X and expected to be able to play an Xbox Series X game on it?

Why would a game made for an Xbox Series X work on an Xbox One X?

If you want to play Xbox Series X/S games I would take your brand new Xbox One X back to the store you bought it and see if they will take it back and you could try and buy an Xbox Series S (Series X consoles are very hard to find, but a Series S can be found fairly easilly)