According to vessel tracking data from the Strait of Hormuz appears to have effectively closed just before 1700 UTC yes

According to vessel tracking data from the Strait of Hormuz appears to have effectively closed just before 1700 UTC yesterday, with no transits observed after that time. At approximately 1650 UTC, the tanker 'Starbound Explorer' was turned around in Iranian waters before completing its transit and returned to the Persian Gulf. Around the same time, the container ship 'MSC Qingdao', which was exiting via the U.S. established shipping route through Omani waters, reversed course back toward the Persian Gulf before later turning around again and ultimately exiting the Strait.