As far as I can tell, there are SaaS ones, broken ones, no longer maintained ones, and the ones that don't work on multiple platforms. There's not one password manager I've heard of that didn't exhibit one or more of the above "features".
"Perfect is the enemy of good", but the effort around making informed choice makes not using password managers seem better.
I use proton pass (SAAS). I just figure I should be paying for core internet services like email, storage, passwords, calendars, etc. so that ideally my interests are aligned with my provider. I use the services on windows, android and linux regularly. So I can confirm that proton pass, email and vpn all work on those three operating systems. I cannot imagine they wouldn't work on MacOS.
Yes, you pay, but I see that as acceptable and expected for the service offered.
As far as I can tell, there are SaaS ones, broken ones, no longer maintained ones, and the ones that don't work on multiple platforms. There's not one password manager I've heard of that didn't exhibit one or more of the above "features".
"Perfect is the enemy of good", but the effort around making informed choice makes not using password managers seem better.