Probably not. But if this were a thing you'd likely want to also skip the ocarina game HP and maybe a few other boring ones.

3 different things could be huge.

Unrestricted items in boss rooms (without having to do something stupid) could change things. You could pokey escape, get ocarina, return to Deku and use ocarina on blue warp instead of OI.

If someone found a way to put a full bottle in Link's hand without dropping/catching we could skip bugs and potentially OI with blue potion, saving a few minutes from not having to leave and re-enter Deku.

If there was a reasonable way to manipulate the wrong warp table, we could wrong warp directly to the END of collapse instead of the beginning... or to the credits.

You can save as long as you don't reset. Your last cutscene watched needs to be the cutscene that plays when you walk into the Deku tree for the first time. The intro cutscene counts as a cutscene so if you reset after saving the wrong warp won't work unless you do the thing I described in my first reply.

Nice. In a run situation you shouldn't have to worry about this unless you mess up double KO and savewarp out and if you're just trying to finish runs.

Good luck. You'll be ready to learn void warp before you know it.

This is assuming you're doing this as child btw. As adult there are other things to do.

A crash means the setup was correct but your last cutscene watched was wrong. If you've already entered deku and are savewarping you need to go back into Link's house and pause to fix this. (1.0 and 1.2, on 1.1 you can enter the Twin's house)

If you're using codes to warp into deku or Gohma's room it messes up your entrance speed so just backwalk into the Deku tree and then you can code warp into Gohma's room.

If you've done these things and during the WW setup you enter the scrub room you entered the door early. Getting the cutscene means you were late.

And this is a lot of people's "go-to"

Look at this series if you're just looking to learn enough tricks to get started and complete a run.

VC ganonless is the category you seek.