Yes, that's what I'm saying. Running Android on Linux is one thing, and that only requires Waydroid and has nothing to do with Steam.

Having an SDK stack specifically for androidarm64 means there are extensions there to hook into the Steam client, meaning Android apps that use Steam platform for...something. This was never announced or discussed.

It has nothing to do with Frame specifically, because you don't need an entire SDK entry point for one device that has nothing to do with Android anyway.

So it must mean that they intend to give the option to hook in to Steam for game devs that already have Android builds and distribution or something. Like Netflix games, Rockstar, Bethesda...etc.