It is, if you run via cable the headset at some point will freeze. Apparently an NVIDIA issue that has yet to be resolved.
The workaround that’s working very well for me (Q3/QPro/rtx5090) is to rollback to Nvidia 591.86. Since doing this over a week ago, Link and Air Link have both worked great. I still use the good old Oculus Tray Tool (mainly to control pixel density and ASW modes via game profiles) and even this seems to work better now.
I also used, and recommend, DDU in safe mode beforehand to properly uninstall previous drivers, which also automatically clears your Nvidia cache. Cheers.
Well, I’ve been flying for 10+ hours now over the last few days with no freezes, latest Nvidia drivers, Link, sliced encoding disabled. Your milage may vary, but I’m very happy I’m not having issues any more 
With Link, disabling sliced encoding adds a lot of latency, for me anyway. Better to just go back to nvidia 591.86 imo.