No, by my logic, Valve does not sell SteamOS, which is correct. Much like Pop, it's freely available to install on any machine, including Framework.

By your logic, Linus would hate SteamOS too.

And yes, they do sell it on their laptops:

Is this photo supposed to prove something? I don't see a charge for PopOS?

[–] hperrin@lemmy.ca 1 points 9 minutes ago* (last edited 6 minutes ago)

It does not matter that they don’t charge, because you don’t have to sell something for it to be a product.

Since you won’t believe me, here’s the dictionary definition of the word product. I’ve emphasized the important part.

2 a (1) : something produced

especially : COMMODITY sense 1

(2) : something (such as a service) that is marketed or sold as a commodity

- https://www.merriam-webster.com/dictionary/product