I'm already playing on PC. So how will they know if later the xbox is basically a PC and if Microsoft allows other manufactures like Samsung and LG to sell their own Xboxes? It will just increase Sony's revenues to have more players access their games.

Use a VPN and they won't know. Either way I have a PC which Microsoft says is an Xbox! And also play Gamepass

Apparently a PC is an Xbox too and you can play it if you have a PC. If rumors about the best Xbox is true.. you will be able to play Steam games on it

Just give other platforms the older games and keep the latest on xbox at launch. This way Microsoft will have extra money to fund more games