I only had to hear Ed Sheeran a handful of times to get sick of that "I'm in love with your Bod-A" chorus. It sounds like the kind of song a guy would write who, once the woman has Bod-B instead of Bod-A will move on to greener pastures. And whatever "the shape of you" is it's probably not about kidneys or Achilles' tendons or mylar sheaths.
Sam Smith ... never want to hear a Sam Smith song again if that's possible.
The four-chord woozy whiny-turns-to-screeching balladry has gotten on my nerves since it was a thing in 1990s popular music, and by popular music I mean indie rock. Nirvana was just another pop band to me. Ditto for Radiohead and Smashing Pumpkins and any number of other bands that somehow got labeled indie-rock in the 1990s.
Alternative music for me was chamber music by Xenakis or organ music by Messiaen or brass music or symphonies by Lutoslawski. It's not that I never listended to pop music back then. I got to liking Bjork, Portishead, the first few Weezer albums, and Soundgarden had a handful of songs I liked. On the more pop end of the spectrum the second Garbage album was cute. I just didn't go out of my way to keep up with trends by the 1990s. Radiohead bored me and I've never liked REM a day in my life. Grunge was just what you'd get if you took punk that had been laying around on a countertop for a few hours, maybe a day, and put it in a microwave. Sure, you "could" eat that but it might not be so good for your stomach.
So singer-songwriters are back. I don't want the new generation of James Taylors to have too much airplay just now.