Odd question: what was mass market oolong in the 90s/2000s?

Today as a tea-head I know that oolong is a BROAD category with a lot of different tastes. When I was a child, and not into tea at all, my mother would talk about how much she loved oolong. (My mom was not drinking high quality whole leaf tea. She thought Stash was premium.)

I’m also pretty sure that there is a lot of tea available today that wasn’t then.

What was mom drinking? Rock tea? TGY? Something else entirely? What was in those tea bags?