Bit of a click-bait title, and it pains me to be a Negative Nancy, but the intent is to draw attention, so here goes.
I will start by saying that this extension makes using 1Password on Linux viable to some extent. Considering where we came from, i.e having to run 1Password 4 under Wine, this is an upgrade.
Now I don't know about anyone else, but I primarily use 1Password on macOS, with the occasional Android/Windows one-offs. Considering AgileBits started offering 1Password in the Apple ecosystem, and by now with multiple releases, it is a fairly mature piece of software. And it shows. Using it on macOS is just a very pleasant experience, for simple and power users alike.
For me, the absolute most important thing is how much time is spent from the "need of password" till the "password where it should be" states. I'm trying to extract the most convenience out of the security I have. My current workflows (in order of time spent) are:
Two crucial features are a. How 1Password automatically removes a password from the clipboard after copying and how 1Password locks. The default IIRC is after 3 minutes of system inactivity, which is near perfect.
With this established baseline, let's see how these workflows fare on Linux. I've been using the extension for about two-weeks, on a fresh Arch Linux install, running GNOME as my desktop environment.
On top of this, the copied passwords are not cleared from the clipboard after a set amount of time, and the extension locks itself while the browser is idle, instead of the system.
All in all, purely by comparison to the macOS equivalent, it is inconvenient to use the Chrome extension in Linux.
I imagine the issues above could be fixed with varying degree of success. The keyboard navigation should be the most straightforward to implement. However other things cannot be solved because of the environment constraints (that is Chrome).
This is just my opinion, but I don't think this extension is a viable solution to supporting Linux, and it may never be considering the limitations imposed by running in a browser (I could be wrong on this). This extension probably works well for Chrome OS, because the OS itself is for lighter usage. But this is not the case with Linux.
Getting an experience that is on some level equivalent to macOS would require an actual app. However this ship may have already sailed, it probably would only happen if instead of making a Windows 10 native app, a cross platform one was made (QT, Electron, or pick your poison). Though I'm sure AgileBits had their reasons not to go this route.
From where I stand the only viable alternative will be a "native" third party 1Password client following the release of an aforementioned API. The API sounds like it might be a way off, and this client is simply a figment of my imagination
Just my wall-of-text pence worth. Now that I read it again it has a touch of a negative tone, I just want to say that I very much appreciate all the work that you've done on this, but that I also stand by what I've said.
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided