When the first MacBooks came out with a Secure Enclave, Keychain was just unworkable slow. You had to type your search query elsewhere and then paste it in, or you’d be looking at a beachball for minutes. Took them a major OS X release before it became somewhat bearable again.

The new Passwords is a joke. UX errors all over the place, modal based view with a toggle to start editing. If you need to enter a password in another area of System Preferences, you need to back out of the auth flow, switch to Passwords and copy the credentials over to a temporary file.