I had a couple of usability suggestions I just wanted to share. The search button is the number one most used feature for me in Android! Pretty much anytime I open the app, it's because I need to search for a login because the autofill didn't recognize it, the password didn't actually fill, it just didn't pop up for whatever reason, or I'm on a non-personal PC and I need to grab a password real quick from the app.
The search itself is fine, but it would be great if the button could be in the bottom bar instead of at the top right hand corner. As a female lefty with a S9+...this is the hardest spot on the phone to reach one-handed! I'm not sure what I'd have it replace...I don't use tags, but I imagine there are many that do. Perhaps most logical would be swapping it with the Settings button or put Settings in the 3-button menu since presumably Settings is a bit of a set-it-and-forget-it thing, but obviously I don't know the whole story.
For the pop-up search, unlike 1P on the desktop apps, the favorites are not bunched together at the top of the search (seems to be alphabetical). This is mostly only a problem with my workplace, which has a lot of subdomains or logins for other users I use mostly occasionally, so whenever I hit one of our sites to login, I get a very long list of results, when there's one I'll be using...80%-ish of the time. It would be cool if that could be replicated, but I understand this may not be an issue for most people or it may make search slower. My personal solution was to stick an A* in front of the favorites so it shows up at the top (noticed numbers get sorted to the bottom), which works well enough.
1Password Version: 7.1.BETA-3
Extension Version: Not Provided
OS Version: Android Pie (Samsung Beta)
Sync Type: 1password.com