Nice to see you, too - Happy New Year!
Your question is very interesting.
As for myself I was always convinced that of course one needs to
feel the music in order to play it.
Until I heard an orchestra player after a great concert sighing about how he dislikes Wagner

Really astonished me. I didn't believe it would be possible to play in such passionately seeming way if not even liking the music. Same, btw. about a singer, Alexandra, whom I liked listen to since childhood and about whom I read way later, that one of her most famous songs she strongly refused to sing, and only gave in because her label insisted... I don't want to know what she did feel while having to sing that song - nevertheless, she sang it flawlessly and convincing. Like an actor can play a murderer without being one? Maybe