True, the feud was strong for a while.
Mitchell’s side....
“Years later, while speaking to the LA Times in 2010, the interviewer compared the two singers as similar artists, a comment which Mitchell would fiercely refute, angrily responding: “We are like night and day, [Dylan] and I. Bob is not authentic at all. He’s a plagiarist, and his name and voice are fake. Everything about Bob is a deception.”
Furthermore, in 2013, Mitchell fired shots once more, this time while in discussion with CBC. She brutally commented, “Musically, Dylan’s not very gifted; he’s borrowed his voice from old hillbillies. He’s got a lot of borrowed things. He’s not a great guitar player. He’s invented a character to deliver his songs, it’s a mask of sorts”.”
https://faroutmagazine.co.uk/the-reason-joni-mitchell-hated-performing-with-bob-dylan/
I see there apparently was quite a bit more vitriol to the criticism. Some of it seems wrong to me. Everyone has a singing style.