Electron

The app being "native" or not is literally the least important aspect in a piece of security software like a password manager. I said this elsewhere, but people should appreciate 1P's exceptional security architecture (that pretty much blows the competition out of the water), instead of lamenting on fancy looks or the lack thereof.

I understand what you are saying and I agree that security is a very important aspect. The UI is very important too and with 1P8 we are having a regression, at least on the Mac. Mac users want polished apps that behave like Mac apps. Apps that use native UI controls and features. The backend might be great, I have no doubt about that, but from a user perspective the experience when using the software must be great. I also know that it is still an alpha version, but I am worried that the Mac app will never get to be as integrated with the OS as 1P7 is. It will never have the scrolling mechanism that a native Mac app has. It will look weird. Is that a deal breaker? For me yes.
Maybe for businesses this is not important (and it probably shouldn't be), but for the typical home user that needs a secure vault, the iCloud Keychain provides great security and with Monterey it will also have a nice UI, which of course feels like a Mac app.
There was a time where 1Password and LastPass were the two big names in the industry. Mac users chose 1Password over Last Pass mainly because the latter didn't have a proper Mac app. 1Password on the contrary offered great Mac apps and integrated perfect with the OS. This was the reason I chose 1Password. This is the reason most people chose it (on the Mac). Now Agile Bits is taking this away from us, so I am sorry, despite the very good back-end, I will not be using this bad app.