Vibration motor intermittent flex or motor fault?

I have a z fold 3 hasnt been dropped still has majority of the factory stickers still on No sooner did warranty end the motor decided to play up

Whilst typing sometimes the haptics totally stop working sometimes I have to close the fold which gives me a buzzing vibration feedback much louder than what the usual vibration sounds like and it'll start working again at times I have to tap the back of the phone where the motor typically sits and that gets it to work again

Is this possibly a motor issue or the main flex