So far the most popular games ive seen pushback from are Slay the Spire, Cult of the Lamb and Darkest Dungeon. Those games also have the benefit of dedicated fanbases. Those people will easily follow them.
Slay the Spire in their statement specifically said theyre looking into other engines. I meant that if said games were ported the audiences would follow.
They didn't say it but I'd assume for Spire they're looking at Godot.
Honestly wouldn't be surprised if we see developers make tools to more easily port over games to Godot from Unity.