I still do. Phones can be turned to view it either way. Screens can't. I'm not gonna ask my bud to get up and rotate his living room TV 90 degrees so we can look at my vacation photos. Plus, until we learn to levitate with our minds, the plane humans interact is and will presumably remain much, much wider than it is tall, so landscape captures more of it.
I still question why so many people find it so difficult to just turn the phone 90 degrees to the side when you film with it. Is it because you think you look like a dork when you film a selfie with two hands? Because that's not why you look like a dork.
I never had a problem with this. It's not like whole movies or long youtube videos are recorded vertically. The kind of content that is recorded vertically is mainly watched on phones, and it's not like it's unwatchable on any other screen.
Never once have I seen anyone say anything about it that is anything more than mild inconvenience about something they really shouldn't care that much about.
It's just stereotypical "complaining because you can" bullshit that is so common.