Hey there!
pickup feedback, actually it do has some audio reminder when you pick up something, it can't work?
Damage feedback,will improve this part later:)
Reload, it's not a bug ;) pistols and revolver need to reload but shotguns do not, it's a game setting.
Throwing katanas, because throwing katanas would cause a lot of damage and do not need any ammo. So this setting more like some sort of balance, but you can switch to throw mode first, and when you switch back to katanas from other weapon, you can throw immidiately. you just need buttons[1,LMB], weapon slot will save the mode of you weapon. On the other side, I will keep an eye on the throwing katanas.
Thank you very much for playing the game and the feedback, very helpful, and good to hear you like the game:)