With Stillcolor enabled (i.e., FRC disabled), I'm completely fine with the 15 inch MBA M2. I think it's one of the more comfortable displays I've worked with over the years (and this is coming from someone who went down the e-ink screen rabbit hole because I had serious eyestrain issues from many screens). However, prior to Stillcolor I was getting a lot of eyestrain; to me the FRC was fairly readily visible.