Big Sur SSV must be case-insensitive?

[SesameWasher]

Haven’t used my Air for a while.
Formatted & reinstalled Big Sur after a long period. Realized there’s the system snapshot and my terminal become case-insensitive (typing “LS” and “ls” or “Ls” works the same way, which it shouldn’t).

It does seem I can still create two unique folder with different case, though, at least under my home directory.

Trying for a third time and see what’s going on.

 

[SesameWasher]

Yep, seems like the SSV were sealed to be case-insensitive. I’ll post the screenshot later on as I’m trying to recover from my backups. The rest of the drive space are still case-sensitive, tho.