This isn't a fix for quest pros / face tracking over link, this is more for Q3's and other features that people use. The runtimes simply are not exposing them per debug logs.
However to answer your question, you can simple copy / paste her script (as its in a code snippet to ensure u copy what's needed) into a text file, save it as a .reg file extension. If you don't see it, then save it as a text and in explorer you can right click and rename to .reg, after that just double click to run ( it will apply the values)
if you don't see the extension of the file then make sure in explorer u click
VIEW -> SHOW -> File name extensions if on Windows 11
Windows 10 will be folder properties -> scroll down to show file extensions.
Likewise I've been using htis headset since last year but this is the first time I've seen them force break it as a "feature" vs bug. Per support they have 0 plans to treat this as a bug and will consider it for the March update, they've been aware of the issue since Dec 6th however PER support: "Since it works for some users(over wireless in this case) they don't see this as a critical or big issue and would rather not risk breaking it for the few it does work for therefore if you'd like to see the feature added, please submit feedback, as bug reports do not get attention since they come from the headset and not the desktop app.
They follow this up with Happy holidays and glad your day is going well.