I think people are in for a rude awakening in a few days.
It's a relaunch, not a launch. Many Steam users who refuse to use Epic have tried Spellbreak before.
Spellbreak hasn't fundamentally changed since a year ago. It's the same game that millions of people tried out and quickly dropped. Chapter 1 doesn't change anything based on the IGN playtest article.
Reviews. Steam has them public.
We will get to see actual population of Steam users, and it's probably not going to be pretty by Dec 19-20. The population on Steam will give people the impression that it's the population for the entire game.
Steam relaunch does nothing for console population issues.