I would like to suggest to bring the down arrow button on the right of the new tab button which has the functionality to show previews of all tabs which makes it easy to understand for which purpose the tab is there for, same like the Microsoft Edge Legacy did.
If you like this suggestion, then please send feedback about it through the in-app feedback tool (Alt+Shift+I) in Microsoft Edge to make it a part of Microsoft Edge Chromium in the future.
