[Moto7451]

I believe the benefit for Edge is faking HDCP 2.2.

[duskwuff]

Then why does the extension try to fake a bunch of other properties, like the user agent and decoding capabilities, which should be redundant?

[Moto7451]

The same plugin spec runs across several browsers and Edge is now chrome based. It’s likely just hard coded defaults that seem a little silly when used on the target browser it pretends to be.