You can remove the "Tab Groups" button by right-clicking the bookmarks bar and disabling "Show Tab Groups." ...
Whether you want a fully functional window or a floating icon, you can find both on your ... the Microsoft Edge browser and go to the Edge bar tab. Then, click the Open Edge bar option.
The same applies for Spotify: navigating across sections is faster, and resetting a view to its initial state takes only a couple of taps (tap the tab bar icon to change view, and tap it again to go ...