I see free previous versions as a fine compromise between the dev and non-paying audience
if there's exclusive content cut away, it's gonna be pirated
but if it's full version, there's little reason to pirate a newer version, in the end anyone can get the game, even if DZ takes a bit longer between latest and free build than average
throwing in newer versions of games that go public is kinda being a dick tbh, since full access to previous versions is bit like an unspoken agreement
Carnal Instinct struck a silent agreement like that I believe, f95 gets the Steam releases of the game, and thus no one bothers cracking through for the Patreon versions, which don't offer anything meaningful as exclusive either