I think two thing could be true, he thought jeongyo as good friend and does envy his talent. I think that’s…
I am not saying he is a saint... honestly no human being is a saint not even Jeong Yo is ...yea he did have inferiority complex against Jeong Yo he was jealous i agree with you but it was also not like that he didn't consider Jeong Yo as his friend he loved him
they are on tiktok sayin that pio was jealous of jeongyo MIND YOU pio was so eager to play four hands with him that he quit competitions , left his house just to reignite his love for it and started to find comfort in jeongyo only for his family to absolutely push him of his limits to the point he crumbles and gives up https://x.com/sadsheIIofwoman/status/2104694948016574568
Someone said this : "I love this take! They are communicating through the piece. Jeong yo wrote it out of hate for him but Pi-O played it with the sadness and fear (a reflection of what HE felt during the events that occurred with Jeong- yo)A person who truly hated jeong-yo wouldn't be able to express that type of emotion especially with a piece made in anger against them. No matter how much Jeong-yo is trying to force that hateful spirit out of him and shed light on the "true" ill spirit of Pi-O the one that hurt him and betrayed him, he fails countless times. Jeong- yo really is being a judge through the music and he keeps sensing the opposite emotions he is seeking from Pi-O. God the details are so beautiful and intense I love it"
News 
https://x.com/sadsheIIofwoman/status/2104694948016574568
"I love this take! They are communicating through the piece. Jeong yo wrote it out of hate for him but Pi-O played it with the sadness and fear (a reflection of what HE felt during the events that occurred with Jeong- yo)A person who truly hated jeong-yo wouldn't be able to express that type of emotion especially with a piece made in anger against them. No matter how much Jeong-yo is trying to force that hateful spirit out of him and shed light on the "true" ill spirit of Pi-O the one that hurt him and betrayed him, he fails countless times. Jeong- yo really is being a judge through the music and he keeps sensing the opposite emotions he is seeking from Pi-O. God the details are so beautiful and intense I love it"
https://x.com/chrxmeheartS7/status/2104634709523489051