Hello. I would change the mouse setting to see if it is indeed a hardware issue.
Try this to see what is going on:
Press Win+R Type Control.exe press enter [ Control Panel\All Control Panel Items ] Then choose mouse:
Check the box turn on click lock:
- See if the mouse click turns into a mouse click hold
- Then uncheck that box after testing it
- Then try the below
Check the box Switch buttons :
- See if that works and if it did work with the hold down left mouse click then it could be a hardware issue.
Photos below for refrence