I know lots of people with EVs, and never heard of a problem related to the EV drivetrain. It does happen, but most problems by far seem to be related to things other than the drivetrain.
I've had a problem with 12V lead acid battery going dead too soon due to the ECU causing vampire drain, replaced on warranty though. Not related to EV drivetrain of course.
For the particular EV I have, I've heard of problems with the gearbox, due to the parking break being implemented in the gearbox. That's a design left over from ICE version of the car, most (all?) new EV models don't have that.
All indications I've seen so far is that EVs drivetrains are more reliable. And we have 10 year old EVs on the road now. Cars are getting more complex in general, so there may be lots of other things that can break. But it's the same with ICE cars, you just get all the extra parts needed for an ICE engine in addition. If I look up most commonly replaced car parts, around half are ICE-only. And break pads needs more frequent replacement on ICE cars.
I've had a problem with 12V lead acid battery going dead too soon due to the ECU causing vampire drain, replaced on warranty though. Not related to EV drivetrain of course.
For the particular EV I have, I've heard of problems with the gearbox, due to the parking break being implemented in the gearbox. That's a design left over from ICE version of the car, most (all?) new EV models don't have that.
All indications I've seen so far is that EVs drivetrains are more reliable. And we have 10 year old EVs on the road now. Cars are getting more complex in general, so there may be lots of other things that can break. But it's the same with ICE cars, you just get all the extra parts needed for an ICE engine in addition. If I look up most commonly replaced car parts, around half are ICE-only. And break pads needs more frequent replacement on ICE cars.