I kinda like the look of them and often feel myself wanting a second monitor if I’m working on my laptop.
(I’ve come to the conclusion if people think I’m working I won’t look like as much of a massive dork)
Always had the feeling they’d be a bit crap though, like the hinges break or the monitor isn’t too good or it’s big and bulky and you can’t really carry it
Ideally I’d like to find a single fold out side monitor that attaches to my laptop (big chunky ThinkPad) somehow and doesn’t need its own power supply but that may be asking too much
I have one like tiramichu and also like it. Use it constantly and it’s convenient to be able to share things on my screen with people on the other side of my desk occasionally, making it more practical than something built-in to the laptop.