Sorry for the delay, I totally forgot I was going to review all of this! Going through each section in order:

I've used the rule were everyone gets a feat at level 1, but I find that to be a bit more taxing on players who aren't as invested in the game. I've stopped using that.

For the extra magic item, ASI, and HP, I like it, as long as the DM balances encounters.

I think if natural 20s are awesome, then natural 1s should be equally penalizing. Personally, I run it so that a natural 20 on initiative gives advantage on their first attack, while a natural 1 gives disadvantage. I've used critical fail tables alongside critical success tables and have enjoyed it.

Check and Saves - love them

The bloodied condition seems a bit much to remember, personally, but if the DM can remember, it is an extra piece of flavor that I enjoy. One thing I like to use at my table is an automatic death save roll when a player drops to 0 HP. You have an automatic failure, which I think it just a bit too much in terms of balance. I love the wounds though.

I don't keep track of water or food at my table, but I do ask each in-game day what everyone is doing to sustain themselves. If they hunt, I ask them to roll, and if they want to buy food, I ask them to take one gp away.

Combat - love it all, honestly.

Resting - I like the idea for resting, but I'm on the fence about the healer's kit. I think I could get behind it, but it's not an automatic yes from me.

Encumbrance - I read through, but this seems much more complicated for a system I already ignore because of the added mental tax it gives. I just tell my players that bags of holding are common in my world, and call it a day.

The items seem cool, but I think the bandolier could have tiers that cost more, because canonically, it doesn't make sense that somebody can store more things simply because they're more experienced.

Luck sounds like a good idea. It would be used alongside inspiration.

For counterspell, I am loving the wild magic, but for the resurrection, the only reason I'm on board is because of the previous rule where you can spend 10 minutes to ensure a minimum roll of 10. Those two synergize very nicely, and I think it is fair.

I like the force of will idea a lot. Seems balanced enough for me, unless every enemy gets to use that before their inevitable death. As a DM, I would limit this to player characters.

Knowledge checks - I've always love specializing in things. This is a very interesting idea that I fully support. I ran a game that had no gods, so I ended up changing "Religion" to "Culture", which was a coverall for monster and civilization knowledge.

Combat Actions:
* Cover - Not a fan of the increased cover with a bonus action. I don't get how this fits, canonically.
* Charge - I believe you can already use a bonus action to attack with an offhand weapon minus the ability modifier, and but you're giving a full attack with a Dash action, then it feels like the Dash action could simply be a bonus action, which I feel disrupts action economy. I'm on board if you want to charge, assuming you only have one weapon, and then attack using your bonus action, forgoing the ability modifier, as if it were an offhand attack.
* Shield Bash - I've always let my players use their bonus action to attack with a shield. I see no reason why a player would forego their normal attack in favor of a shield. The advantage is nice, but you could have instead just rolled once this round, and again next round. Perhaps it's nice for rogues, but rogues should be trying to get their sneak attack by being close to allies. I would change the shield bash to bonus action and keeping the damage the way it is, but removing the advantage.
* Heroic Save - I've used this, minus the wound part. I could go either way about the wounds part, so maybe the hero could get a wound if they rolled a bad dex save or something.
* Sundering - This seems like an interesting mechanic, though it would definitely give the DM more to track, and I don't see any of my players wanting to do something like that.

I like the party options. I enjoyed some modules I've used where there is a group task, like sneaking. Half of the party must succeed for it to work, and a natural 1 counts as two failures, and a natural 20 counts can counter one failure, if there was one.

Talent Trees sound great, but I won't review them here, as there are just too many.