I will say this about D&D2024:
I kinda like that you're allowed to do the Solid Snake "Hide behind a corner from people chasing you with guns and they forget you exist" thing. I think that's A-class game design.
No. I'm not joking.
Being able to duck down an alleyway and make a Stealth Check to yank yourself up out of view or dive into a pile of trash well enough to 'vanish' and have the people chasing you turn the corner and be unable to find you enables -so- many media tropes.
Particularly the "Sneak behind someone while they're looking the wrong way" mechanic.
Unless, of course, they take the "Search" action to actively try and find you.
I would make the following changes:
1) Make it a Stealth Check against the enemy's highest passive perception (for mixed groups)
2) Make the Search Check be against your passive stealth (barring 'share stealth' mechanics)
3) Nix the use of the word Invisible which gives people unreasonable expectations of quasi-magic stealth.
4) Create the "Hidden" condition. It's basically the exact same thing as Invisibility as written, but the Invisibility spell grants you the Hidden Status rather than Stealth granting you Invisibility is a -much- easier pill for most people to swallow.
5) The Invisibility spell and other similar spells instead allow you to maintain the Hidden condition even without cover or concealment. That's how the Invisibility spell "Breaks the Rules" of stealth. That's it. Problem solved.
6) You are able to move on your turn while remaining Hidden (if you have the Hidden condition) by making an active Stealth check against the highest Passive Perception of creatures in the area. But you lose the Hidden condition if you don't end your movement with cover or concealment.