Ungoogled Chromium Flatpak support

[InvisibleRasta]

I tried this for ungoogled chromium flatpak and it is not working. Any suggestion on how to get it working?
Also the ungoogled chromium website has a guide but not for flaptak
Thank you

[azizLIGHT]

I used this script and I got widevine 4.10.2710.0 in my /home/user/.var/app/io.github.ungoogled_software.ungoogled_chromium/config/chromium/WidevineCdm/and Spotify worked for me.

test-widevine.html result:

DRM stream test result:

On Ungoogled Chromium Flatpak, Version 127.0.6533.119 (Official Build, ungoogled-chromium) (64-bit)

Make sure "Sites can play protected content" in chrome://settings/content/protectedContent, close ungoogled-chromium, run the script, and check test-widevine.html