Hard to keep track of all the games on that list, but Nintendo is King.
Nintendo develops twice as much as the other two combined, is the most diverse of all three, and still manages to keep the quality of each game high.
Expectations for Nintendo are also much,
MUCH more laxed compared to Sony or even Microsoft.
Nintendo's games don't need $100 million budgets and huge marketing campaigns. There is also a cultural bias for Nintendo's IPs due to how long they have been around. We saw Sony's arguably most varied 1P output in the PS3 gen, and they almost went out of business for it because all the people who say they want that variety, weren't supporting it at retail.
Can't keep saying one thing and doing something else and not expect people to catch on. If Sony came out tomorrow and said they'd be scaling down to just a single Horizon/GOW/GOT/Spiderman-style game every 2-3 years and pad out the rest of their 1P schedule with new Gravity Rush, MotorStorm, Fat Princess, PS All-Stars etc., you'd get a few big-talkers championing it, and immediately get a bunch of console warriors clowning them on it.
Then a year after all those games dropped they'd all underperform and see record losses because the same people always complaining about Sony not doing many of those types of games anymore will just "conveniently" find excuses to not support them. Or, they'd expect Sony to put them in PS+ Day 1 but simultaneously try finding exploits to pay as little for the service as they possibly can.
Because the types who tend to insist everything come to a sub service Day 1 and those who try abusing loopholes to pay as little as possible for these same services, are usually one in the same.
No, I would absolutely say they lack quality games - but I would also say the same for Sony since around 2016.
"Mass Market" appeal tends to make the same, tired, generic games over and over again. They are typically shallow, lack interesting stories or gameplay hooks, and are almost always bloated, focus tested experiences. It is why the Indie to AA scene from all major publishers/companies produce more entertaining products. Give me a Pentiment, Hi-Fi Rush, SIFU, or Strangers of Paradise any day of the week over the latest boring/trash GAAS/Open World bore.
Different strokes for different folks, but I'd say between the two, Sony have managed a much better means of balancing quality and innovations that resonate with enough the mainstream market because we see the results in the output and the sales/revenue performance of that output. And at least enough of the hardcore/core fanbase are into those games because the wider success can't necessarily happen without the initial appeal to most hardcore/core gamers.
It's a good thing to have variety like HiFi Rush or SIFU, but a successful platform can't rely on only games like those. As a more seasoned or particular gamer you haves your own tastes & needs, but don't underestimate the need by big publishers to appeal to the larger market. Just that some are better (quite a lot better) at finding a balance between innovation & polished familiarity than others.
Again, relating to Sony & Microsoft, Sony have consistently proven to be significantly better in that balance than Microsoft.