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Long and sahort answer: You need to educate yourself about color management and how different apps and CoDecs may use it or not. Your monitor color profiles may be screwy or configured differently across devices, your clips may have been created to specific profiles and not tagged as such, you may have set the AE and Premiere workspaces to some alternate profile without actually using a proof preview. A million ways where things can go wrong. And as @OussK said even some weird hardware acceleration issues may figure in...

Mylenium

So the issue happens when you change the device from MacBook air to MacBook pro, so why you say it's an adobe problem and not an Apple problem? since you have no issue with the 2020 app on your old device, we all know that this device has a few issues with GPU and the compatibility with adobe software, so did you try to talk with apple support?  

anyway, the MacBook air using the intel integrated GPU and the Macbook pro use a pro-GPU