Dell Vostro 3520 keeps freezing and crashing

I have 4 Dell computers 

Vostro 3520 i7 12th
nvidia mx550 gpu
ram 16gb
screen 15.6 120Hz
windows 11 pro

The problem is that the screen freezes and the mouse and keyboard do not respond unless the laptop is turned off by the power button 
The latest drivers were formatted and downloaded from the Dell website 
Update the BIOS to the latest version 
The problem was not solved 
Dell was contacted and the board was changed, but the problem was not resolved 


Does the Vostro 3250 version have a manufacturing defect?