I really like these suggestions, only thing I want to say is I personally really like the difficulty curve right now though I am a very seasoned scav player so I wouldn't know what its like for newer players,
Im not very active on the discord but I know the dev isn't taking any suggestions right now (he closed the forum for suggestions and theres a rule on the discord against giving suggestions unless he asks for it, which is completely fine since he is selling this amazing game by himself for the price of free) But you can ask him for permission to make a mod if you know how to code
of course the game is in-dev right now so some of these will probably be added since these are good suggestions in my opinion,