Homebrew moved out of /usr/local on apple silicon and I've seen people assume that this was because of macOS changing things so that /usr/local was no longer us

Homebrew moved out of /usr/local on apple silicon and I've seen people assume that this was because of macOS changing things so that /usr/local was no longer usable. It wasn't; Homebrew just wanted to stop using /usr/local and they saw this as a good time to do the migration.