from the sounds of a review about it, it doesn't sound much like alien isolation or a knod to it (maybe only gameplay wise). I'm sure it wasn't very difficult to write considering so few games are in first person and so few have both games amount of toolsets to fight. the hexagonal narrow hallways isn't that difficult to copy. So it was inspired....not an easter egg unless you actually have something that is lifted from isolation. Not sure if that's the case though. https://www.polygon.com/23905305/cyberpunk-2077-phantom-liberty-alien-isolation-horror-mission
Turns out when you excise toxic workplace culture instead of just paying lip service, good things can happen, busy right now but looking forward to playing this in the new year.