It's not feigned ignorance, it's disbelief that people are comfortable working in such an inefficient and frankly unpleasant way.

Can I file my taxes on my phone? Probably. But I could also set myself on fire, and I think that might be more fun. Why would I not want to use a tool that is 100x faster and 1000x easier to use for any task more complex than writing a sentence?

I'm a developer. I've heard of developers SSH'ing from their phone and developing that way. It's impressive, in the same way removing all your fingernails is impressive.

It's not feigned. I'm astonished to learn how hard people will work for the (seemingly to me) false convenience of doing things on their phone which would be (to me) much more straightforward to do on a more suitable device.

So I tend to assume that these stories are often the outliers, and that my personal experience is more common. I recognize the fallacy, and I suspect we're both wrong and we're both right. I just honestly don't know which one of us is more of which.

It probably devolves to a question of what kind of work we're talking about. The work that I do (or the way I do it), I do not believe could be done effectively on a phone or tablet, most of the time. I work with people whose work can be done there. And there are probably more of them that there are of me. But that does not mean I could become one of them.

(addressing your comment on another subthread): if music, camera, and web are a person's "work", then sure. But that does not resemble "work" for me in any way.