The article has a screenshot of the Stanley Parable, but misses an opportunity to reference Control (2019) which is much more directly influenced by the "liminal space" concept, and imagines a non-euclidian space called The Oldest House at 34 Thomas Street (a reference to the brutalist, windowless AT&T Long Lines skyscraper at 33 Thomas Street, New York City).

https://www.youtube.com/watch?v=F74LLDhAhhI

It also very much ties in with the shared SCP universe, which itself has a number of Backrooms-like anomalies, such as SCP-3008 (https://scp-wiki.wikidot.com/scp-3008), which is like a typical IKEA, except its maze of twisty passages run to infinity.