while using vertical tab view and resize to its smallest width. like this
and if you have sound playing in the tab, it would be hard to mute/unmute the tab with the sound by clicking on speaker icon on the tab. (you need to move to the left edge if the speaker icon to click it successfully vs literally anywhere in the normal width version)
the icon has a larger clickable area.
Version 0.99.126.4.1.10-rc (WebKit 619.1.1)
Sonoma (14)