+1 They shouldn’t move
Launching the car a lot and driving on first gear is what breaks the engine mounts
Here is a small test to run
When the car is cold (Engine warm enough) Stop, put the car on first gear, accelerate fast to 40Km/h then stop, do it a couple of times, then when you do it again, listen if there is any knocking noise or a strange shake.
If there is one then you got crack