Edit: I dont recommend this lol
They install an outdated package on purpose, because Blackmagic doesnt give a damn about Linux lol.
Use this Flatpak tool instead, which should work, will keep all the strange dependencies in an isolated container, and you can control filesystem permissions of that shady proprietary software from the GUI.
Here is an alternative Piped link(s):
https://piped.video/watch?v=a676VE9GeNQ
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source; check me out at GitHub.