I have created an account on the forum for the sole purpose of adding my voice to the complaints of the new autofill behavior. When I click on an item in my vault, I want to see the preview of that item, no matter if it is an autofill suggestion or a vault item. The blue autofill button from before was easy to click, you knew that clicking that will autofill. Clicking the row itself should always bring up the preview for consistent behavior. I often need to check the preview of stored credentials for a site I am visiting (URI match) but now I keep autofilling by accident.
My gut tells me this change was implemented because someone thought beginner users “might be confused” by where to click to autofill. It just takes a few seconds to learn.
The best way forward is to give us an option to toggle this behavior. Don’t abandon your power users in favor of dumbing down Bitwarden.