Seems like some of those options got removed in MagiskSU now.

I don't know why this is just added. Maybe one of them has started their sponsorship recently? Also, I can't imagine the reason why Warp sporsors a mobile terminal app.

This is termux and termux-x11 with xfce. Maybe this site might be a good place to start.

https://github.com/LinuxDroidMaster/Termux-Desktops

Sorry I should have been more specific. How did you do this? Is this PostmarketOS?

xfce

Looks like XFCE

What is this environment