There’s now a tablet-friendly taskbar in testing ahead ofthe big 22H2 update.
Tablet mode was removed entirely with the release of Windows 11, but some other tablet-related prefs remain.
you could swipe up on the taskbar to expand it again, restoring its usual appearance.
Microsoft
It can also be turned off completely from controls > Personalization > Taskbar > Taskbar behaviors.
The company said it would re-introduce the feature after more work, but the updated version appears identical.