Imo the biggest difference between older music and the stuff of today on top of the charts, beyond what is popular, is the focus of what people consider good about it.
the music I prefer from older genres was more "complete", subjectively and without any type of musical background. like the song itself, even the album had more going into it than what is present today. most of the albums had a "theme" the songs were part of, maybe not as much on the B side when that was a thing. whether it was an instrument that was being used throughout, or some different chord or pacing or whatever. then the instrumental part of the music was actually celebrated as part of the song, how many drum solos, guitar riffs and otherwise are present today? Something where the artist shuts up for 15 seconds and the instrumentals carry the song. the instruments also set the tone, changed when the singer changed pitch, tone, pacing etc, so on.
the only one on that list I have any real exposure to is Taylor Swift due to my fiance, so she is the only one I can really compare too. What I have heard from Ed Sheeran comes the closest to what I was talking about above. but TS is almost the antithesis, almost. she does have a theme she will pull thru and its likely because she writes her own music so credit there. but the music itself is "flat", not like the notes, but whatever pitch TS starts the song with she carries throughout the whole song. song to song she will vary, but not in a song, so its not as interesting to me to listen to her. same with the music, it never compliments what she is doing. it never carries the song, it holds little to any actual interest. IDK to my fiance its part of TS genius that her fans can take tons of her singing and play it over different songs music and it doesn't lose anything. to me its a loss of "depth" in the song itself that they are interchangeable.
also the amount of "soul" in top charting music has been dead for decades long before any of these guys were around. hardly any of it feels real/important to the artist. idk another subjective thing others probably don't care about.