So first of all, I don’t think it’s true that the article describes a switch to 100% free software. For example, the author bought a mirrorless camera, which is going to run proprietary software. Second, and more importantly, I think your comment implies that the only lever of control is switching between free and non free software and I don’t agree with this. For example, I am now protected against Google terminating or otherwise locking me out of my account whereas I was not previously protected. Even though I disagree with your comment, I appreciate that free software has some advantages over proprietary software and I would not dispute the claim in general.