Xenoblade and monolith as a whole has been amazing for RPGs post nintendo acquisition. And Splatoon is super popular these days (but is very MP centric).
Thing is Nintendo doesn't really need to make new franchises every other year like Sony. their new, semi-known franchises from the last decade has been Splatoon and ARMS. But they constantly reinvent their old IPs and tend to give it sufficient time to bake. Stuff like Breath of the Wild may as well have been a different franchise for what a departure it was from the Zelda formula.
Also helps they can just dig in their wine closet and bring out some untouched scotch. It can take out F Zero, Kid Icarus, Golden Sun, Warioland, Mother, and a dozen other franchises and they may as well feel new to the next generation. Sony instead abandoned all their talent and moved HQ.
I own a PS5, and the absolute most fun I've had on the system is Astro Bot, followed closely by Rachet and Clank: Rift Apart. Everything else I've enjoyed has either been a PS4 game or an indie game.
But stuff like Astro, Splatoon, Ratchet and Clank, whatever latest Mario title, anything Rabbids or Rayman, etc. don't speak to me at all anymore. I never played R&C in any of the Playstation generations, and I never liked Crash Bandicoot when I tried that. I sort of remember liking Spyro when it was contemporary.
Given the selection bias of who publishes what games where, it's hardly a surprise to me that I'm not getting much mileage out of my Switch. Nintendo feels like a brand that's tailored most of all for my kid nephew and any appealing titles for me are largely exceptional.
At the time, I was just starting to think of video games as an art form in addition to a source of entertainment, and the blatant fad-chasing I was seeing across nearly the entire industry turned my stomach. Of course the same thing had happened many times before and has happened many times since, but I wasn't in my formative years for any of those.