I have found 2 Moons earlier than intended using some methods I can explain.

The first one is a Metro Kingdom Moon titled: Girder Sandwich. I was able to get it while the first boss was active,(the one shutting down the electricity,) idk how useful it'd be for a route but you can get it! Ask and I'll let you know how. It's not too complicated just requires a little set up and some midair moves.

The second one is a painting one without the need of the painting exit it would normally need lol. It's in Seaside Kingdom titled: Secret Path to Bubblaine! Again, ask and I shall let you know how. This one took me a while to figure out a way I could do with those jet squids but I figured out a way.

Again I didn't want to go into full detail because I didn't know if people would be interested in knowing. Because though I have always loved speedrunning I never have! I just like to figure things out and ways to "cheat" the system and how to do things earlier than intended. Although I have posted one of the two on twitter and recorded the other just now on my switch.

Lmk! Comment or whatever!