I get that this phone doesn’t have that option among other disappointments. But today to my dismay I was able to do it. I like to use Spotify which will not orient horizontally. But while using Apple maps horizontally today I was able to also bring up the lock screen functions horizontally. I pulled down from the top right corner (which would be the bottom right if you were holding the phone normally) and it brought up the lock screen horizontally with my Spotify quick choices to the right section of the screen. I don’t know if this is a glitch but I want to be able to do this again I would have screenshot it if I wasn’t on the freeway.