I would totally ignore these specs for the moment. It's not telling much.

System specs are meaningless without knowing what the terms refer to; the context is missing. Like what resolution and fps we are talking about here? What level of settings (graphics and such) are used for "minimum" or "recommended"? The problem why the devs do not a "proper" specs sheet is, because they could be liable for it. I mean the more detailed the list is, the more people get angry if it does not work as expected on their machine. Also nowadays we have handheld PCs like the Steam Deck, which is pretty standardized hardware. They could provide detailed information how well it runs on a device like this or if its not playable / supported.