I have an Xbox One S and was wondering if I could build it into my Pc because I saw that there are Pcs that have a Ps4 built in.
I'm not sure what you mean, but you can definitely connect your Xbox to your PC monitor.
Moin, Yes of course you can build your Xbox into a pc case, but you have to improvise a bit. Since the io cover will not fit, however, you can make and adapt one yourself and the mounting screws for the mainboard will probably not fit either, but there are several types of pc cases where you might be lucky. But the thought that you want to install them there's not bad because you prevent the system from getting hot! With a bit of sensitivity and improvisation, it is definitely possible. I've already implemented some of these ideas!