All the best ones. I don't think Osaka's issue is with losing, it's with the crushing weight of expectation and the spotlight.
There's a bunch of people on tour that you get the impression they're basically just there to have a good time. They travel the world, they play tennis, they get paid - Monfils, Kyrgios, Bublik, guys like that. It's a job, or a way of life, and they're fine with that.
There's others who you get the impression have sort of accepted their fate, and that they're never getting beyond a certain level. I think the Berdych, Ferrer, Tsonga group certainly reached this place in the 2010s.
I think when it comes down to it the ones who lose the least are the ones who hate to lose the most, because they're just not used to it, and are playing more for titles, for legacy, for stature, than the money or the ranking points.