Perform a three-finger swipe down. If the desktop shows (Show Desktop) with zero lag, you have achieved extra quality. If it stutters, you need to roll back to an older Synaptics driver (ironically, newer is not always better; try version 19.0.19.1).
: For a simpler method, go to Settings > Windows Update > Advanced Options > Optional Updates to see if a specific Synaptics driver update is pending. synaptics touchpad driver windows 11 extra quality
catalog.update.microsoft.com)..cab file.