I don't really have any mags post internet, usable internet.
However, they are a quick way to check up on ye olde days.
Weights are indeed mentioned, but many of the reviews and articles don't feature them.
There are no articles where it is mentioned that the testers conducted weight measurements of their own, rather than just quoting manufacturer's claims.
I am sure I saw those types of comparisons in road bike mags of the era, but it seems I recall correctly people were not as detailed in their desires back in the day, whenever that is.
The mantra was more like, "Never mind the weight, ******** uses it so I need to have one!"
The whole scene and tech moved so fast back in the day that magazines were never on the cutting edge, unless we are talking Horticulture Monthly.