https://www.resetera.com/threads/state-of-decay-2-on-steam-screenshot-proof.36368/
From ChairmanChuck
Seems State of Decay 2 might be coming to Steam and not just the Windows Store.
The PAX East Demo seems to "imply" that it connects to Steam servers:
https://i.redd.it/9w9sd1rlclr01.png
*in case picture is removed by host, it features State of decay 2 - played at Pax and shows a "login failed" alert, that says "unable to connect to steam, Make sure steam is running, your logged in... bla bla bla".