Well, I read a lot. I have two e-readers and stacks and stacks of paper books...
...and, I still read 90% of my books on my phone. It is good enough. It is fast and responsive. It is always with me.
I read a lot, I have 2 e-readers and stacks of paper books, and an iPad Pro.
And it has been at least five years since I read a book on the phone, or iPad, though a couple years ago I read part of a PDF book on the iPad.
I think this stuff is really down to personal preference. And the kind of reading you do and where you do it.
My iPad never leaves home, and as such, it’s always going ahead to head against the e-reader, and losing except in the case of PDFs.
I do occasionally find myself with too much time and in a place with just my phone and not my laptop case (which almost always has e-reader in it, along with my laptop), and in those cases, I generally read hacker news.
Paper books get read when I cannot find an electronic version - which is fine, better than any other form except the e-reader.
But that’s me and my devices and my usage patterns and hangups. It’s not my wife, It’s not my kid, and it’s probably not most of you.