You say this, but my MBP had a very obvious red glow in the bottom right corner which was actually much more noticeable when compared to the very slight reddish glow on the right side of the screen of the MBA.I would go with MBP M1.
Much better display.
has both variants (and a few of them).
looks like you did not compare them in the right way. Exposure is different. So no real comparison.
every MBA does have red glow.
MBP don’t have it.