how many devices does xbox gamepass ultimate cover

wrong again and again and again, please update where you are getting your information as it is well wrong, you have been able to share windows store games and gamepass pc games for years without issues. you can share on multiple pc's.

why are you here as you are of no help/

According to a thread from 2020:

"2) One Ultimate will cover it. You can log into the MS store on both PCs. There is a limit to the number of logins you can do at once, but its more than 2."

The poster was asking about 2 pcs and an Xbox so ignore any Xbox stuff in the thread:

https://answers.microsoft.com/en-us/xbox/forum/all/using-xbox-game-pass-simultaneously-on-2-pcs-and/

There's also a Reddit with the same question being asked:

https://www.reddit.com/r/XboxGamePass/comments/qs62yw/game_pass_ultimate_on_two_pc/

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Sam, on your console you can share up to two consoles, as you only have xbox console you won't have a problem sharing your account.

You can share at the same time with a console and a PC, but not with two PCs at the same time.

How home Xbox and game sharing work

https://support.xbox.com/en-us/help/hardware-ne...

The only game i have found to cause issues is sea of thieves, will occasionally boot one person out due to licence conflict, other than that i have not had any issues will 4 gaming pc's running the same game on gamepass downloaded from one account and being used by 4 separate accounts.

if its gamepass ultimate then that covers pc and xbox anyway.