I solve the problem.
I install revo uninstaller and delete complete the oculus app from win10 with registry entrys.
After that i install the oculus app new @WIN10 now linked work.
And i get air link option on my app now but air link is to slow @moment and dont work good.
I like linked more because the graphic looks mutch better with display pixel firstname.lastname@example.org
Set Quest 2 resolution to 3936x1984
open oculus debug tool
1.) Set Pixel Per Display Pixel Override to 1.6
2.) Force Mipmap Generation On All Layers On
3.) Encode Resolution Widh 0
4.) Encode Bitrate Mbps 400
This setting work with 3090 and i dont get the red bar again.
When something changed i tell you how you can solve maybe the problem.