How is Pyke doing ??

Mediocre. Now to be fair his no hp does relegate him into the high skill category, but he is still a bit overly weak, especially because he is just so absurdly squishy late-game, but without the tools that a no hp character needs, he's too exposed in team-fights with such little HP that he just pops to almost anything. Even in the best matches for opposing team the Pyke usually ends up semi worthless by the end of the match because he just can't provide enough utility without instantly dying.

And winraes reflect this. Even given his new status and high skillcap, he has the lowest winrates in the game outright at least 5% below where he should be to be in a good spot.