rtwk Vlad https://orionfeedback.org/d/7180-tab-preview-for-vertical-tabs-in-fullscreen-do-not-show-up-at-all-or-when-they-do-theyre-misaligned
sanssecours Please add an option to always show the tab preview (in the sidebar). This features makes it easier to navigate between (a medium amount) of tabs, since both the description and a nice graphical preview are visible. The attached screenshot shows how this looks in Omniweb. Opera also used to have this feature.
eirk BTW currently you can also enable this setting to get a preview of all the tabs in a window (I do know it's not as good as a persistent preview, but it's the best right now)