Xbox Series X

The Xbox Series X hasn't shown many fault traits yet, but there have been a few problems with popular "user damageable" parts such as the HDMI circuit. HDMI ports are very weak for the Series X and tend to break easily. You can avoid this by keeping the console in a safe location and ensure there are no trailing cables or potential to fall down. Keep them as low to the ground as you possibly can and clean them out regularly using a can of compressed air inside the vents.

Known Faults
There's a video on YouTube which goes over the fault finding process for no display when the port is not to blame. There's also a video on YouTube which goes over the replacement process for Xbox Series X HDMI ports.

Low Resolution mode demonstration.

[Credits: TheCod3r]