I watched a 3 hour Eagles documentary on Netflix. It was mostly told by Henley and Frey. My impression was that Frey didn’t care much for Felder. He claimed that Felder wanted to claim every credit for their sings by coming up with a stray note or minor guitar riff.
The shame of it is in later years given their concerts and renewed interest after years apart, they probably made considerably more money than when they started, Felder was a part of those early years and success and should be reaping some of the rewards.
They are still playing live at the Sphere resort in Las Vegas, which has to be hugely profitable for everyone.
I watched the same doc and I didn't come away with a good impression of Glenn Frey.