Gifted program metrics

My daughter was evaluated in 5th grade (she was homeschooled before 5th) at the suggestion of her teacher. She was found to be gifted by the schools metrics, which I didn't actually look at until recently. She went into 6th grade this year, and was placed in all advanced classes, because thats all they really offer middle school gifted students in our district, other than taking them out during WIN block for special activities 1x a month. In high school there is a "governors school" (basically a sort of magnet school for gifted kids), that is pretty highly selective.

Anyway, her accelerated math class seemed like it was going to be kind of intense, and I started to worry about whether placing her in all advanced classes was best for her (especially with her uncontrolled ADHD, which we are working on). I decided to ask the school for the results of her CogAt and I found out that she scored in the 95th percentile for her age.

Now according to this sub, "gifted" should really be 98% and up, and possibly if her ADHD was controlled she would have scored that high, but the other thing is she is one of the youngest kids in her grade (August birthday), so her grade level percentile is actually lower at 92%. But also these are national metrics, and not local so IDK how she measures up against her local peers. We are very rural, so that might affect things.

The school has about 1200 students, and I guess you need to set the bar where you can have enough kids in the TAG program to make it efficient/economical, but also, my understanding is that kids that are "truly" gifted, vs just very bright, have different needs and lumping them together isn't necessarily particularly helpful. Now my child is definitely not neurotypical, but Idk how much of that is ADHD, potential autism (suggested as a possibility by a her developmental psychologist), or "giftedness" as there is so much overlap in symptoms/behaviors for these groups.

I am wondering what y'alls thoughts are on whether age or grade-level metrics (or some other metric) should be used when evaluating for TAG programs in schools, and what you think the cutoff should be? Do you think a kid at 92% for grade level be placed in TAG? I believe other standardized test scores and teacher interviews were taken into account, but it seems like giving a label of "gifted" to a child who potentially isn't could cause issues down the road.

She's doing well in all her classes so far, but it just got me wondering about the label of "gifted", how it is being applied, how children are being grouped together, and whether we are setting these bright but maybe not "gifted" students up for success. My daughter doesn't really care about being "gifted" or not, (she actually refuses to believe that she is very smart at all, despite hard evidence to the contrary), so the label is kind of meaningless to her, but it seems like some other kids cling to this identity, when maybe they aren't actually "gifted" at all.