My dream right now is getting something like a Dasung 13" touchscreen monitor and use it with my phone. That way I don’t need to find a device with brains, only a phone that fits my needs. Unfortunately, my phone (Pixel 6a) does not support video out from usb c (thanks Google), so I can’t test it. Can this idea be something for you?
Could you give an example of what would be “a reason not to”?