(Rhetorical) Why on Earth does Keychain Access show options to lock your keychains when, to the best of my knowledge, they've NEVER worked?
I vaguely remember those from OS X and they made sense at the time, because of the way Keychain worked. But keychain functionality has changed significantly since then and If those options still exist in macOS 12.5 (Monterey) or macOS 13.0 (Ventura), I can't find them.