Given that even at least one of the big non OEM p/w managers has had serious security issues, at least once, I’m always surprised that folks are so willing to use free p/w managers.
I specifically have used the keychain on Mac since it was available and on iOS for the last decade. I’m willing to trade a few peripheral features for integration and development resources that comes with it. If Apple has a breach, it’s going to get a lot of attention compared to the rinky dinks.
The last couple adds of authenticator and a notes section were big for me as they allowed me to retire SMS 2FA on many sites (and remove my phone number) and to move all the site related info, assigned HME e/m address, acct nrs, PINS, Codes, Recovery Keys, what bio info (phone, address, DOB, etc.) is stored on site.
Basically straggler info that had been in contacts, notes, etc from the time before passwords could hold it, could be consolidated into the notes section of passwords.
To be honest I most enjoy the security feature enhancements info from wwdc.
I hope at some point Safari Autofill, esp credit cards, and HME email addresses are migrated to be stored in passwords. I prepared an unsolicited proposal suggesting this when HME and passwords last big adds appeared, since there is so much overlap of information among these.