You can't see the whole game field on a normal HD screen even if you choose preiew size 50% for the Iphone x preview (portrait mode)
I just noticed in new update 2.3.2 they added 25% size to the preview screen. So launch game, switch to iPhone X, then to 25%. Before the lowest was 50%. Now we can see the entire screen. Also take a peek in settings at the 'screen adjustment' menu, it used to be default, width and height before 2.3 but now a new mode has been added, 'Auto'. it seems to fix sizing issues for assets between the diff devices.
