I'd really love to have some input here, folks!

On other Linux distros (Arch, Ubuntu, Fedora) I've been able to solve this problem, but I'd like some tips how to solve it on a Sabayon system.

The problem is getting a Sabayon Linux system running Firefox to play Hulu/Netflix/Amazon/Disney+ videos.

With Ubuntu spins: Firefox runs this out of the box.
In an Arch system: Found the solution here.
Inside Fedora, I found you can do this.

How can I fix Firefox to play videos on these sites in a Sabayon (Gentoo) system?

Alternatively, I know google-chrome will work, too, but how do you install Chrome (not chromium) on Sabayon?

Feedback appreciated!

That's all?
All you need is to install flashplayer?
That can't be too difficult on any distro, unless it's one of those 100% Libre distros...