I think the final level of Yooka-Laylee and the Impossible Lair may be one of the most poorly designed platform stages ever made relative to the rest of the game. It's absolutely ridiculous and after two attempts, I'm done.
Fortunately, I knew before starting the game that the final level was awful, so I never expected to fully complete it.
That being said, I'm kind of surprised at the praise this game has gotten from some on Era. I mean, it's decent enough, but outside of the final stage, which is horrible, this game has a fatal design flaw: it tries to shoehorn 3D collectathon design into a 2D platformer and it completely kills the pacing of every level. Most of the coins are hidden, which means you're slogging through each level trying to find them. DKC handles the KONG letters perfectly. They're almost always visible. The challenge comes not from locating them, but from figuring out to obtain them, usually through some tricky platforming challenge. This is how you handle a collectable in a linear 2D platformer.
TLDR: Yooka-Laylee and the Impossible Lair is ok. It has nothing on any Donkey Kong Country game. Not even close.