These features and enhancements will become available starting the week of April 19th, 2021.
Ya I had a very similar issue with v28, v29 except my visual artifact had a red tint instead of being white/bleached out.
Here's the image posted in the thread you linked: large (749×999) (oculusvr.com)
I was able to fix it by disabling Link settings in OTT, and setting ODT settings to default. For some reason, after the reset I can now change Link values back to custom settings via ODT (OTT Link still disabled) and the visual artifacts haven't returned.
Got the Desktop-App v30 in the release-channel yesterday... no words on changes / release-notes.
Also not on the official site: Oculus - Release-Notes - latest ist v29 back to may.
Works with firmware v29 on Quest 2... Air Link has to be activated in beta-section as before.
One new option (also in beta-section of the app) : OpenXR - runtime.
(wich should reset OpenXR back to Oculus if that changed in multi HMD environments)
Recent changes to airplay and dynamic bitrate seems to have bricked some Rift S's into a loading loop. A loop that can be recreated by setting the bitrate to something unusable via oculus debug tool.
Simply turning on Airplay ended my three dot loading loop and brought me to a failed dash with passthrough.
I informed support of this issue with the recent updates and was told to not raise unneeded tickets.
I don't want to say that this bitrate change was done to purposefully destroy some Rift S's that had camera sensors that were known to be out of warranty. I however will say that they sure don't want any help fixing what they broke.