I bought Yooka-Laylee for the Switch, and you know what? It's a pretty good game! It's made by the people who did Banjo-Kazooie and Donkey Kong 64. They promised to make a game just like those ones, and they delivered on that promise!
Some people have complained the game is too similar to those 1990's games, which makes them boring and outdated. Are these the same people who complained that Duck Tales Remastered was outdated, for being based on a 90's game? I say, "Whatever, man." Being like 1990's games was the entire premise of the project. There haven't been any major collectathon games in over fifteen years; it's a change of pace to play one again.
Sadly, I'm not very good at 3D platformers. I keep falling off platforms and messing up the controls. The race in the first world is a perfect example. I lost over a dozen times, because I couldn't master the timing of when to jump and how to keep my characters on the track. The game is still fun, but there are multiple places where I had to decide, "No, I'm not going after this particular item. It would take way too long to do." My gameplay is limited to "one hour, once a week", after all.
The game has an "expanded world" feature. You can expand a world, so it has 5-10 new challenges / areas to explore. That was a neat idea, although I think it could have been implemented a little more smoothly. I wasted a lot of time in World One, trying to explore places which are empty and pointless, until the world is expanded. There's no way to tell ahead of time if you can't explore a particular area yet.
I liked the first three worlds. I did not like World Four, which looks neat but is hard to navigate. I just started World Five, and I hope it's better.
I want to do a collectathon-style game someday, although I have no idea how that'd work out, since I make visual novels. I tried making one for Mermaid Mission Titanic, but it morphed into a maze puzzle instead. I think that puzzle segment is still good, even if it's not a collectathon. The testers seemed to like it. I wonder how the general public will like it, when the game is finished.