5.7 is better than everything the US have done in the past decade but it isn't true peer combat. The Indian side have questionable EW cover, little to no AEWC support and no 5th generation fighter.
Ugh. They don't exactly excel at buying high numbers of AEW aircraft when compared to Pakistan, but it was clearly there.
And jamming - even more so. India has land-based EW, and in 5.7 it certainly had way more in terms of self-defense jammers (and almost certainly - escort jammers, which it even has in the first place) than Pakistani side; Pakistani unique enablers(which India doesn't possess) aren't operational yet.
Frankly speaking, one can say that one of the reasons IAF suffered so heavily is they seriously overestimated their capability to get out of "what if" contingency - i.e. relied on jammers far too much.
Combat isn't just checkboxes. On China-related forum of all places we should remember it(two months till aniversary of PLA's entry into Korean war).
Being fair, true peer level combat has not happened post WW2
Looking at specific engagements is enough. Most model "peer engagements"(say, ww2 daylight gun battles between RN and RM) were just inconclusive.
What is true peer engagement matters very little to engagement between infantry platoon and similar force of irregulars in Afghanistan mountains. Two Infantry platoons will interact the same way in a global nuclear war.
Sindoor is absolutely a viable scenario how engagement can go even between 1st tier air forces, provided 5th gen a/c aren't present.