If already using Chrome's built-in password feature, is there a good reason to use this besides just wanting to use one FAANG ecosystem versus another?
Now I (using Safari) can use the upcoming iOS/iPadOS/macOS version’s shared password functions with my wife (who likes Chrome), all without a separate password manager.
We’ve used 1Password for ages, and I still like it a lot at work, but can probably get by with the built-in tools now.
Chrome doesn't have a TOTP authenticator, Keychain does. I don't use that feature in any password manager but some people really love it. Keychain will sync on any Windows/Mac Chromium based browser (so Edge, Brave, etc) plus Safari, so it's a little bit less locked in than Chrome but not as good as a standalone password manager.
For users with multiple Apple devices, this should enable the same password syncing and auto gen capabilities as using Safari. For me, that means a lot less hassle using Chrome as my dev browser (otherwise when I’m prompted to create a password, I switch to Safari to create/submit it, then copy from Keychain Access, which works but it’s a PITA).