Not sure if it is a scam, like people are claiming (on the post, and steam reviews). I feel like it is more like a lack of experience and knowledge in the game business than any intentional wrongdoing.
There are definitely problems with the game, and the pace of updates and fixes has been lacking since it first appeared on Steam.
After watching the dev Stream in 2023, it seems like he loves what he is doing and probably will see this through, but he really struggles with basic concepts of game making - that might have changed since then.
During a programming session, he was asking everything to an AI chatbot and copying the result into the code, then suffering for a while back and fort with the bot because the code did not work as he intended, while the chat was sending the documentation page of the engine and other help that would have solved his issues.