Widewine and similar DRM schemes pretty much require hardware assistance; the lower levels that do not will provide you with 720p, which is exactly what you are getting in Linux. For 4k, it requires tee application, or similar mechanism that's not in the reach of mere mortals.

The early bypass of widewine meant burning an nvidia shield (invalidating its keys) for each and every single rip.

> Widewine and similar DRM schemes successfully achieved this

Do you have any references to back that statement up? Software-only DRMs are ultimately always either plain obfuscation or some variant of white-box cryptography, which is also anything but proven to actually work.

Widevine and other schemes are trivially defeated as far as manipulating the results of what you see on the screen. The best they've been able to do is sometimes protect the compressed original stream, but they also routinely fail at that, and that's not the kind of security that can defeat an adblocker. The kind of security you're talking about would require some kind of TPM-like solution to attest you're running approved software and don't have root.

Touche, not a TPM, those are usually separate hardware whereas TEEs are integrated.