[Santosh83]

Out of curiosity, which sites are these? Do they also similarly break with Firefox or other non-Chrome browsers or only MS Edge?

[scumbert]

Non-Chromium derivatives are blocked as well, yes, but neo-Edge is a Chromium derivative.

[cpeterso]

Google Stadia was one example:

https://www.trustedreviews.com/news/why-stadia-access-blocke...