This isnt a free speech issue. Neil Young is not the government nor is spotify. If Neil Young didn't want to be on the same tv show as joe rogan nobody would care. This amounts to the exact same thing.
I don't believe that free speech only applies to governments, free speech also applies to the general population, also because we don't elect toasters and coffee machines to governments, and elected people have the power to change regulations and amendments, so I feel like attack on free speech need to be fought starting from our neighbours
About Neil Young not being willing to participate along with other people, I would appreciate more Neil Young to go to participate with people and counter-argumenting their ideas with words, instead of being a little kid acting like "Gne gne gne I don't want to talk to you, teacher please can you send him out of the class?", I mean we're adult and capable of expressing complex ideas and counter-arguments, there's no need to running away, imho, but he's free all he wants to be a kid, just let's not consider him a paladine of anything
Consider one thing that I found extremely upsetting, as european, like the BBC was attacked for spreading misinformation only to have REPORTED news of people protesting in cities against lockdown measures