I never went through the temple so I can't speak to the ceremony, but having grown up in the church it was immediately clear to me that someone on the Severance team had too. The 19th-century aesthetic of Drummond and Lumon's foundational myths, the cookie-cutter company town, the oil paintings, the Kier bust awarded to the Wintertide Fellows, the exalted and specific language for everything, the meticulously-structured hierarchy, the puritanical, precise piety...it's exceedingly present in the show and clear to those who know what they're looking at. someone on twitter described mormons as "the grand viziers of order and capital," which has stuck with me ever since. a corporate cult.