Thinking back to my praise of Host not using “network interference” to hide visual shortcomings, I can’t recall it having many visual shortcomings in the film at all.
It only comes closest to Unfriended’s fake cutaway scene with Caroline’s (Caroline Ward) brutal demise partially hidden behind her custom Zoom background (also used as a brilliant tension-building tool early on).
This is one of the more astonishing things about this micro-budgeted, three-month production entirely shot remotely by webcam in which most of the special effects are practical and genuinely disturbing, showing the full extent of the terror and carnage as much as possible.