Hello Apple, your 13” M1 MBA looks a bit blue to me! 🙈😁
Trust you don’t run them normally at maximum brightness! What do they look like at, say, 40% brightness? How do they compare at that level with true tone ON and then with it OFF?
Which laptop is the camera focused on? See whether that makes a difference. But, again, at normal brightness.
Are you under fluorescent lights, LED, or incandescence? Or, natural light? That could affect this, too!
In my experience, one gets used to the shade after a while, whether yellower, bluer, creamier, or whiter…