@burnout426 I did several things to try figure this out. Yes, wildevine worked at that site (and funnily enough it failed for several MSE for Firefox, my main browser). So it must be the site itself just disabling it for Opera, site being the Telia tv-streamer service.
And I solved it. I installed a User-Agent switcher for Opera. Faked it to think it's a Chrome browser instead, and the video/streaming works now. And I wanted to do this so that Philips Hue lights would work with any streaming service having DRM.
I added this to the Opera shortcut -after target: --user-agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
And now it doesn't complain about the browser not being Chrome, Safari or Firefox.
