Autofilling incorrect information (perhaps after auto-locking)

Thanks--indeed, the incorrect item had Safari associated with it as a 'linked app'. Here's the new behavior, and a bunch of followups:

NEW BEHAVIOR: following the steps in my initial post, the end result is that the "Quick Access" floating window now pops up, with nothing in it. In some ways, this is better, since 1P isn't actually filling incorrect information, but I now have to dismiss the floating window, make the Safari window active by clicking on it, then CMD-\ again for the autofill to actually happen.

Some questions...
- I had a hard time finding this discussion on a different device much earlier in my day. I thought I had posted in the "Mac" area. Any insight as to why we're now in the "1P in the Browser" part of the forum, and also, my personal feeling is that this forum area might be past its useful life, since (I think), nearly all the 1P8 stuff is driven "in the browser" :)
- How can I find other entries in my 1P database that have a "linked app" associated with them? There doesn't seem to be a way to search for that.
- What's the purpose of the 'linked app' feature anyway? Searching that phrase in the KB brings up no documentation about its utility, only a brief mention when linking your MacOS login info to the 1P database.
- Similarly, when I read that KB article (https://support.1password.com/mac-universal-autofill/), there's some talk about "Fill & Update". I feel that it's unexpected behavior to add a 'linked app' as part of that process. I'm sure my problem started with me wanting to save an updated password.
- Why would linking Safari override the URL matching?

Thanks in advance for any insight...
brad