I just use iCloud keychain. The third party ones can never be as secure. For non-safari usage a little less convenient but worth it.
That's not to say other solutions can never be as secure, but it's a fairly good design nevertheless.
[1]: https://www.apple.com/business/docs/iOS_Security_Guide.pdf
Is this like a "belief" in the healing power of crystals, or of the bumps on your head being indicative of your personality, or do you have something substantial to share?
Seriously though, I'm more interested in the assertion that any password manager can never be as secure as iCloud, even ones which don't upload data to the 'cloud'.