[WR] Celeste Vanilla Collab Any% in 0:02:108

A description of what the fuck is going on here for those curious:
Effectively, there's some code saying "let's store the return to lobby info in that corner and grab it whenever we create the session". There's also some code that says "when loading a save, don't pretend we are creating a new session, but say we're restoring one". What this means is the return to lobby info patiently waits in the corner until you create a new session - which for most use cases will simply be returning to the lobby (and yes, this results in the return to lobby button appearing in the lobby itself).
However, if you save and exit with that info saved (you can't do this via other means, as going through chapter panels clears the corner of stored info) then you can create a new file with the return to lobby button still persisting, and then subsequently use it to teleport back to your last respawn point in the map you performed the trick in (in this case the grandmaster lobby).
With all that said, the trick is now patched on current patch thanks to some quick work by max480 - which oh-so-luckily means I don't have to worry about competition on this.
Thanks for watching (and reading!) - hope you enjoyed :3