what mean Force Touch trackpad features?

>System Preferences>Trackpad to make modifications/see Gestures /demos & actions

How to use the Force Touch trackpad - Apple Support

https://support.apple.com/en-us/HT204352

Change Trackpad preferences on Mac - Apple Support

https://support.apple.com/guide/mac-help/change-trackpad-preferences-mchlp1226/mac

Use Multi-Touch gestures on your Mac - Apple Support

https://support.apple.com/en-us/HT204895

Use trackpad and mouse gestures on Mac - Apple Support

https://support.apple.com/guide/mac-help/use-trackpad-and-mouse-gestures-mh35869/mac