Horses for courses. In the 90s, I worked in the retail shop of a framebuilder who built a fair number of track frames used at all levels from local Cat 4 night to Worlds.
My own frame, 53cm, built for general track use with a nod towards sprints and kilo, was 4 1/2 pounds. I'm 5'8" and raced at 160-165 lbs.
Frames built for LARGE sprint specialists could be 6 lbs for the frame only.
Frames built for 5'0" women might be 3 1/2 lbs.
In almost all cases, the framebuilder would have built a lighter road frame for the same person. My steel road frame from the same builder is well under 4 lbs bare.
These are all numbers for steel frames. Trackies generally aren't weight weenies. My own 53, complete, is actually under the minimum weight that is now enforced, due to it's papier-mache wheels and a couple minor weight saving tricks.