Quick Access showing up empty in Vivaldi

Hi,

My preferred browsers are Safari & Vivaldi, and Cmd-\ is how I prefer to fill-in passwords, although I sometimes click on the text field 1P overlay. In Safari, Cmd-\ brings up the quick entry window with (if needed) the possible login options for that site.

In Vivaldi, the extension correctly offers the account info if I click on one of the text fields, or if I click on the toolbar button, but Cmd-\ always comes up empty.

I've confirmed this is isn't a problem in Chrome, so it's Vivaldi-specific.

Any ideas?

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1Password Version: 8.7.0
Extension Version: 2.3.3
OS Version: macOS 12.3.1