> it's OK to blame both at the same time.

You either do compatibility testing, and frame the marketing around the truth, or you have pissed off customers. There's not really an alternative in the hardware world. The logo on the exterior of the product is who they'll, rightfully, blame.

People usually blame the manufacturer they paid the money to. In this case Framework could have chosen AMD or tested with Linux or stated that Linux is unsupported on 12th gen Intel or... There are so many possibilities.

Indeed. Few things in life are free. Blaming others is free and free of consequences.