I too would love to see some toggles for some rules to be more accurate/akin to the TTRPG
Things I'd particularly like to see:
-- A less "magical inventory":
- Handing over an item from a character to another character should cost an action if in combat AND require melee range.
- Out of combat, it should be ok to work as it currently works or maybe with a limited (but not super limited) range like 20 ft, so you generally can unless the character is roaming somewhere else by themselves
- Keys and such require the actual person holding them to be used. That would make stealthy/rogue-ish sections much more interesting imo.
- Finally, it would be nice if inventories in multiplayer could be "hidden" from each other, or at least have a "private" section that I could store some stuff in and can only be accessed via pickpocket. Playing with friends and roleplaying rogues and stuff isn't as fun in this game, I can't get some extra gold after lockpicking a chest!

- Send to camp would be gone with this setting too, but still possible if you (for example) have a familiar or animal companion or so. You could send things to camp in bulk and that would take the creature out of action for a set time (like 10 minutes, etc.). Could work like the "Add to Wares" option, where you "mark" things to be sent to camp and then you click a button to send all at once.
- Finally, with such a setting on, some very expensive/rare but coveted magical items like bags of holding and other artifacts that can re-introduce some of these features on the mid/late game could be seeded to merchants or valuable loot and drops.
-- Combat:
- Grapple. I dunno about others but I'd love to have a "grapple" action

I understand it might be troublesome (visually) to make it happen due to all the possible size combinations, but I'd genuinely be satisfied with it even if it has somewhat generic animation without the grappled character actually being held in the grappler''s arms. They could just sort of have a generic "trying to wiggle away" animation while the grappler has a generic "holding something in front of them with effort" animation
- Also a toggleable "hardcore rule", I'd like to be prompted about prepared spells after every long rest (do you want to change your prepared spells?") and, of course, that would mean no changing of prepared spells at any time.
-- Other stuff
- As a fellow tabletop player I initially hoarded some stuff that I eventually realized didn't really have a good use like bedrolls and rope. I'd love to see some practical use added to rope, if possible, and it would be cool if having bedrolls would maybe slightly improve the short rest or something. No big deal tho.