UPDATE: (thanks Mauser II and Patrick Schmitz)
The screenshot issue is happening due to HW acceleration being enabled and is NOT a DRM thing!
The AMD video recording problem IS a DRM thing tho, which is why I assumed it was also causing this problem. My bad! (see screenshot in the Mauser thread for that abomination)
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I was gonna share a screenshot of a football match I'm watching, because I think one of the teams has very nice kit colors, but I'm on Windows right now and screenshotting it leads to a black window - no doubt because of some DRM crap somewhere in this shit OS.
God I hate neoliberals and their capitalist bullshit
Not sure if it's in Windows itself or in the AMD drivers or in the browser (firefox) but either way it's some freedom infringing bullshit and I can't wait for this whole system to come crashing down as it no doubt soon will