I stopped using 1Password for personal stuff and switched to just Apple Passwords about a year ago so I can add a little colour to what to expect.
Firstly, the Apple Passwords app is slow as molasses, just really really bad. If you've got more than about 1000 items, it's almost unusable. That said, you very rarely have to use it, because password entry in Safari is perfect, and the menubar app for it doesn't have the same slowness problems.
One big gotcha though is that Apple Passwords thinks site1.example.com and site2.example.com are the same site. So if you log into site1, it notices that the password you used isn't the password for site2 and offers to update it. If you click yes, it will overwrite the password stored against every subdomain of example.com - if you need to use multiple Sentry accounts, this is very problematic.
Finally, password entry in other browsers is less than perfect. There's an extension for Firefox but it's clunky, and the experience is even worse in Orion. Don't know about Chrome as I don't like to have spyware on my computer.
1Password also thinks site1.example.com and site2.example.com are the same.
This is adjustable - sorry for UI in French - https://imgur.com/a/Rn046lL
For a password saved from foo.contoso.com:
First option - "Fill anywhere on site" - this means it will fill on foo.contoso.com and bar.contoso.com
Second option - "Fill only on the specified hostname" - will only fill on foo.contoso.com
Third option "Never fill" - written on the tin.
it's possible to make entries autofill only for the specific subdomain. But otherwise, you're correct.
It's possible to make them autofill, yes, but it's the dialog that asks you if you want to update the password stored for example.com after you autofill, that's the gotcha. That one will set the password for every *.example.com password you have stored, to the one you just used.
edit: Ooops, just realised you were responding about 1Password, sorry.
Is it possible to set it to NOT require Touch ID for every single password every time?
Not to my knowledge, but if you have a paired watch, it will let you do the double-side-button-click to approve
I've no idea I'm afraid, I've never tried as it's so quick and seamless to use.
On phone it's no issue to use FaceID, but my laptop and desk setup is such that I have to reach my arm over to use it.
Oh, the humanity!
I use it with Chrome and so far I had no issues.