In order to remove any misunderstandings between runners and/or viewers, adding text to the "Rules" tab would probably be a useful implementation.

Here are some suggestions:

All Levels (1-600):
Beat all 600 levels of the game in order.
Timing starts on tapping to start level 1 and ends when the final glass on level 600 turns happy.
Purchasing hints during the run is banned. However, outside resources equivalent to a hint may be accessed during a run (e.g. a route sheet, screenshots, stream chat).

Challenge (Flippy Glass)
Highscore category. Each score point counts as 1 millisecond. A screenshot suffices as proof.

Individual stages (1-10 etc.)
Beat all levels of the referenced stage in order.
Timing starts on tapping to start the first level and ends when the final glass turns happy.
Purchasing hints during the run is banned. However, outside resources equivalent to a hint may be accessed during a run (e.g. a route sheet, screenshots, stream chat).

Misc full-game categories (1-100 etc.)
Beat the referenced Levels in order.
Timing starts on tapping to start the first level and ends when the final glass turns happy.
Purchasing hints during the run is banned. However, outside resources equivalent to a hint may be accessed during a run (e.g. a route sheet, screenshots, stream chat).

Any%
From a profile with no stars collected, unlock and beat level 600. You may play levels in any order any collect any number of stars from each level.
Timing starts on tapping to start level 1 and ends when the final glass on level 600 turns happy.
Purchasing hints during the run is banned. However, outside resources equivalent to a hint may be accessed during a run (e.g. a route sheet, screenshots, stream chat).

What do you think?

I think we should leave all the levels in one category. And so, can be put such rules

Any% is not All Levels. The level 591-600 stage unlocks with 1416 stars, which can be obtained by playing just 472 levels, meaning that Any% can be finished by playing just 482 of the 600 levels.

Which is also why you'd have to play it from a profile with 0 stars. Easiest would probably be to uninstall and reinstall the game

Challenge 10 Rules
Beat all 10 levels of the stage in order. Timing starts on tapping to start the first level and ends when the final glass turns happy. All glitches are allowed. Purchasing hints during the run is banned. However, outside resources equivalent to a hint may be accessed during a run (e.g. a route sheet, screenshots, stream chat).