I saw it on Badminton Europe FB. Their FB: https://www[.]facebook.com/stories/1336165976484709/UzpfSVNDOjc5MjE1MzQ0MjU1MzkzOQ==/?bucket_count=9&source=story_tray Or alternative: https://www.reuters.com/sports/bwf-approves-temporary-ban-unplayable-spin-serve-2023-05-12/ That serve is almost impossible to return after looking at the video
https://bwfbadminton.com/news-single/2023/05/29/ban-on-spin-serve-extended-until-after-paris-2024/ Extended till after Paris 2024