What happens if you don’t repair a leaking CV boot?

Car was parked up for a very long time with a ripped CV boot.

I know the i dirt and grime gets in it can mess things up. But what exactly will happen and what symptoms should I be looking for?

Car feels funny (maybe cos it’s been brought out after a long time and maybe dragging to left a bit). Know there’s other reasons this could happen but could it be related to anything the ripped gaiter at all?

Thanks.