Liquid Retina XDR Display Calibration
It appears it is no longer possible to use a Datacolor Spyder to calibrate the display of a MacBook Pro with the introduction of the Liquid Retina XDR on the latest M1 chip set models. A Support Bulletin, https://support.apple.com/en-us/HT212851 indicates that only a high-end spectroradiometer can be used. Such equipment is orders of magnitude more costly and complex to use.
This likely will pose problems for photographers and other content creators who rely on readily available ad easy to use tools like the Sypder to calibrate across devices, printers, displays, cameras, etc. If indeed this is the case, it is disappointing and a step backward for the MacBook Pro.