What freedoms can possible be referred to other than the First Amendment? This is the standard language of someone applying the First Amendment to private citizens and companies.
If you want to devolve into purely hypotheticals you’re going to find yourself on weak legs because the ultimate argument ends up being that “Joe Rogan speech is denying my freedom from hearing arguments I do not agree with.” These specific issues have been long settled by the rule of law. Being contrarian about this is neither productive or practical.
Where does my freedom end and yours begin? If I am infringing on what you feel is your freedom, where is that line? Do I get to play my loud music at 2AM when you have an early morning? Is it ok if you are sleeping in the next day so it doesn’t really matter that I’m keeping you up? When do these ultimate and unlimited unenumerated freedoms fall apart?
When they infringe on what society considers to be the normative freedoms we all get to enjoy.
Spotify gets to run their private business as they see fit because that is their freedom to do as long as they do not break a law or infringe upon your freedoms. Your perceived freedoms cannot infringe upon their freedoms.
The fact that this discourse can happen in the open is proof that free speech exists and is in force.
If the Biden administration could control speech they could ban anyone suggesting anything other than the official position of the government. Clearly this is not happening.
Likewise, if the government could control speech they could choose to force Neil Young to place his music back on Spotify for the sake of trade. This is not happening.