I agree with you, in 2023 modern graphics and storytelling has given us some excellent series, although I'm not entirely convinced that all modern series have better storytelling, or graphics.
Neon Genesis Evangelion is I believe still well regarded for its graphics and storytelling, and it dates from 1995, while 1996 bought us Vision of Escaflowne. The Studio Ghibli films from the 1980's and 90's have some excellent graphics and storylines even without modern technology to create them.
I agree that there are a lot of series from the 1980's and 90's, and some on into the 2000's, that are probably best forgotten but lets be careful not to tar everything from those eras with the same brush.