I’m not sure if this game is still in development. The quantity and severity of bugs still in the game seems shocking to me. It doesn’t seem clear to me from the communication on this platform or Steam that these will be adressed. Does it even make sense to make serious bug reports?
You have answer for first questions in the other thread. But about that:
On the forum? Probably not. With ingame bug reporting tool. Probably also not. I think that at this point it is best to tell about them on their Discord channel in bugs section.