Using UVC (USB Video Class) with an iPad Pro 11 inch (2017)

I use an iPad Pro 11 inch as my main tablet. I bought it in 2018, so it has lasted a remarkably long time. It is very convenient, so I always want to take it with me when I go out, but its functionality overlaps slightly with a PC. So I thought that if I could use it as an external monitor, that would give me a reason to bring it along.