Cannot install Game. After Installing Disc 1 and it asks for Disc 2. I cant select Disk 2 because there is no selection feature, but its mounted.

yes it is: https://support.rockstargames.com/articles/8090412952339/GTAV-Title-Update-1-61-Notes-PS4-PS5-Xbox-One-Xbox-Series-X-S-PC

and i cant relate to the Ray Tracing issue, even after the Update. Iam playing at Max Settings RTX On and its working just fine and runs well.
R7 5800X with RTX 3070 Ti

Xbox 360 and Xbox One Controller are broken after the update, but i got my savegame back and the Language Pack is working again, after adding a string to the Shortcut.

The Language Pack is not working after the new Update. i cant change the Language…

This runs very good. i have an Ryzen 7 5800X with an RTX 3070 Ti Strix OC to 2100MHz.
Getting with RTX ON and Max Settings @2880 x 1620 (2,25 Times DSR) 75-90 FPS.