Trackpad issue on Inspiron 14 5410

The trackpad on my Inspiron 14 5410 with Ubuntu 22.04 sometimes (quite often) disengages. (it did also with 20.04, before my upgrade).

Quite often the cursor doesn't move, while I move the finger on the trackpad. In order to have it start moving again, I must perform a click and generally, after that, it starts moving again (sometimes maybe for few centimeters).

This makes the trackpad hardly usable. I end up clicking on wrong places on the screen, making actions that are not what I have to do (e.g. confirming a dialog when I have to dismiss it...) 

This is the output of xinput

⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ DELL0B23:00 27C6:0D41 Mouse             	id=11	[slave  pointer  (2)]
⎜   ↳ DELL0B23:00 27C6:0D41 Touchpad          	id=12	[slave  pointer  (2)]
⎜   ↳ PS/2 Generic Mouse                      	id=18	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Video Bus                               	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ Integrated_Webcam_HD: Integrate         	id=10	[slave  keyboard (3)]
    ↳ Intel HID events                        	id=13	[slave  keyboard (3)]
    ↳ Intel HID 5 button array                	id=14	[slave  keyboard (3)]
    ↳ Dell Privacy Driver                     	id=15	[slave  keyboard (3)]
    ↳ Dell WMI hotkeys                        	id=16	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=17	[slave  keyboard (3)]

Any help highly appreciated!