Has anyone noticed a change to how GPU works with game sharing?
I could be wrong, but I thought that was the way it worked even before GPU? I remember there being posts on reddit back before GPU even started that described game sharing GP. The other person had to search for the game in the store. Since it's not tied to their account (it's tied to the home console), the GP section in Games and Apps won't be "active" for them.
I remember when I signed up for the $1/month GP deals (before GPU was a thing), I would tell my game share partner to look up the list of GP games on the website and then search in the store to download whatever he wanted to play. (This was before they added that Game Pass tab to the Home screen.)