Same here, absolutely loved the series until the ending. Legendary Edition is on Game Pass but I just don't feel like touching it at all.
I still have the trilogy on 360 and they're the only games of my old collection I did not install on the Series X. I feel kind of bad being so petty, but then again it was one really bad conclusion to an otherwise stellar trilogy.
They definitely should show up as long as they are backwards compatible but when you add a new profile or buy a plethora of games it can take a little while. I guess the console is scanning and processing your profile but doesn't update immediately. It sometimes help to hard reset the console by holding the power button until it's turned off.
You can also open the Xbox Guide, hover over My games & apps, press the start button and then select refresh.
I'll look into it, thanks! I haven't done a hard reset, so maybe that'll do it. I'd probably lean Performence if I play Cyberpunk, to address your other post. (See? I didn't miss it.)
Now that the next gen version of Cyberpunk 2077 is out I recommend giving that a go (unless youâ€™ve already been burnt).
I have not played it at all, so if the issues are resolved I may finally pick it up.