Good points, I'll chip in with my thoughts.
1. Weapon swapping being free is indeed very odd, especially now when considering that it costs an action to equip a single dropped weapon I think? Also, I don't think a shield on the back is ever going to be as effective as a shield in hand ready to block, it's totally illogical to me. So I hope they remove that persistent AC bonus when it's not in hand ASAP.
2. Encumbrance is indeed a tricky thing to implement, like with damaged weapons and repairing, and so on. But I'm pro-encumbrance too, and think sending items to camp shouldn't even be an option for most things, perhaps just keys and story items, books, letters, etc. Plus, it might make you think more about how much food you want to haul back to camp too, because right now food is so abundant it's a non issue resting after every battle as you can just send it all to camp with not a care in the world.
3. I don't think a Wizard should be able to learn divine spells either, too powerful and it breaks immersion/lore in my opinion. Nothing further to add to that really.
4. Agreed. Make spell preparation for camping, I imagine preparing magical spells is complicated and not really something they should be able to do on the go, I don't know.
5. Hide being an action for non rogues, maybe, but I'd argue Rangers in light/medium armor it should be a bonus action too, and for everyone picking stealth feats/proficiencies and not wearing heavy armor simultaneously. Otherwise investing in stealth in any way as anything but a rogue would be pretty bad no?
So yeah, pretty much agree with everything.
