I often play a game called Sailwind. Very relaxing, but impressively deep sailing sim. It's been early access for a couple of years, but the (solo-)dev is active, new features are added all the time. If he would release a paid, cosmetic dlc: I'd buy it in a heartbeat. I think it would be nicer than to "get him a coffee" or sub to his patreon.

What I'm trying to say is: not all early access is bad, not all paid dlc is plain greed. And the combo is not necessarily toxic.