Thank you for your feedback, Here is a good place to report bugs (the discord server is here for that too, but I get that joining only for that is tedious).
For the first one, it's actually with every objects, yes, and it was a bug at first, but it became a feature now, it's fun and not game breaking, so I'm keeping it haha
The second one is an actual bug, it should be fixed since the latest demo version, but I'll double check.
No I haven't tested the linux and mac versions yet, not extensively at least (I just know the game lanches and doesn't crash when starting) but it seems it works pretty well, yes, thank you for telling me, I'm really happy as it will allow more people to be able to play it !
Thanks again, I really appreciate you taking the time to play the demo and give me feedback on it, it really helps a lot !