The best way I have found is using a save manager on a homebrewed switch because it lets you clearly label which saves are what. Ultimately it is just a label and you can just make practice saves by making multiple profiles without the need for homebrew. Also as far as I know there are no emulators supporting save states for Switch games.

We would appreciate additional details on this "double jump" and what is "jumping in front of the ladder"? Because the way I see what could've happened is simply jumping onto the ladder and then jumping from the ladder, which you can do, to the top of the ladder.

I understand you may not have anything for this particular incident, but for future reporting, taking a switch clip using the capture button is a fantastic method of obtaining evidence for things immediately after you just realized it might be of interest.

It's to avoid preloading. The game keeps assets in memory so load times get shorter if you don't completely close the game between runs.

I don't know if it's that much less because the patch made it slower too... It could be more too if it slowed down all loading screens... It would need to be re-timed to be sure