Basically, some different apps were linked to the official steamVR app. These apps are hidden, but the data miner was able to grab some assets from them that included some custom art for Waydroid, which is a Linux program that lets you run Android apps on Linux.
Additionally, I've seen comments saying that some valve devs have been making pull requests for the Waydroid github, but I don't actually have a proper source for that.
I hope so. I really want Valve to allow Android games on to their store and allow installation from it etc. I'd trust Valve way more than Google, thus I'd be way more inclined to buy Android games.