I've got a Dell Inspiron 5515, running Windows 11, and after a year of owning it, I've started to get this weird issue where the touchpad clicking stops working randomly (I can still move the mouse around though, just the left/right click cease to work); say after 1h of use. Sometimes it starts working again on its own, for no apparent reason. Sometimes the computer restart helps, and sometimes it doesn't. What I've also noticed is that plugging in, and starting to use an external mouse seems to get it to work again, pretty much always.
Any ideas why this might be happening?