There’s a video here of Ritsu monks performing the Uposatha ceremony at their last surviving temple, Tōshōdai-ji in Nara.
If I’m construing it correctly, the first thirteen minutes are taken up with confessional proceedings (and perhaps devotional ones) and then the Pratimoksa recital proper starts at 13:50. As it’s all over in just six minutes I suppose it must be a recital in brief - perhaps just the pārājikas and sanghāvaseșas. Recitals in brief are also very common in Thai village temples, even though the Pali Vinaya only permits them in certain special circumstances.
