I think the most interesting phenomenon about her is that she's able to do it while sticking to basically two things, music and tabloid gossip. No major scandals, no reality show, no guest appearances on SNL, no movie cameos that spin up into an acting career...
For most artists, that trajectory is critical to staying relevant. Timberlake, Gaga, Beyonce, The Weeknd, Travis Scott, Ariana Grande...they all do it. For TS to oversaturate us this much while basically sticking to just her main career track is pretty remarkable.
Edit: okay she's done more acting than I could recall. Man, her filmography is dire though. So far in the 2020s it's just Cats and Amsterdam, two of the most notorious flops of the decade.