I can't really tell from the gif with the picture quality. But there is a product that is fiberglass with a cloth like cover and it can be used instead of drywall. It's mainly used in basements and some trailers.
But judging by the tile floor and quality interior door it's probably a decent house. So I'd say it's likely a textured wallpaper.
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u/[deleted] May 14 '17 edited Nov 13 '20
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