Document how to install Steam

[puneetse]

Do you think Clear Linux documentation needs a new document? Please describe.
There have been a lot of repeated questions asking how to install Steam. The /usr/bin/steam included from the linux-steam-integration packages adds confusion. It would be worth documenting the current state.

Should the new document be a guide, a reference, or a tutorial?
tutorial

Describe or provide examples of similar documents, if possible, from other web sites
https://www.phoronix.com/scan.php?page=news_item&px=How-To-Steam-Clear-Linux

The document should cover flatpak install, manual install, and mention the separation of wine between Clear Linux native and Proton.

Additional context
clearlinux/distribution#1613

[tpleavitt]

Funny enough, I just installed steam on my system at home over the holidays, following the forum posts and it is working well.

[lebensterben]

I've installed Steam but not using the deb package. You'd be able to find a tarball release here: https://developer.valvesoftware.com/wiki/Steam_under_Linux

The only problem is it's by default installed to /usr.

If no one is currently working on this I may write a draft.