The new tab preview feature came in this week with the canary channel and you can enable it with this flag - edge://flags/#tab-hover-card-images. My thoughts about this feature are that the design of the preview cards is good but it is not good to see that the preview cards are not aligned with the tabs maybe because they are big. In Legacy Edge, the preview card used to be aligned with the tabs which used to have a good User Experience. It would be nice to see if the preview cards are aligned with the tabs.
Tab preview in Edge Chromium when the first tab is hovered.
Tab preview in Edge Chromium when other tabs are hovered.
Tab preview in Edge Legacy.
I sent feedback through the in-app feedback tool (Alt+Shift+I) in Microsoft Edge. Any thoughts that you would like to share about this feature?