Look at what calls for a Wisdom ability check under the rules.
You roll Intelligence to see if your character knows something.
You roll Wisdom to see if your character notices something.
So, there's no class features that rely on Intelligence that really break down thematically if you rework it to Knowledge.
The Wisdom rename takes a little more thinking around.
It certainly works fine for Druids and Rangers. Their magic comes from being in tune with the world!
And that's. That's the rules as written. There's no other canonical application. A few "the DM might..." but nothing written down as such.
There isn't one. That's not how ideas work. That's not how anything works.
It just WORKS BETTER.
But I don't deserve to hear it.
But I take what is already about 99% consistent subtext and make it text.