Idk about UI design, but from personal experience, Japanese software feels really weak. I play a popular Japanese CCG and the tournament software they use is really bad. At the big events there's 30m+ of downtime between rounds because there's no automated way to input match slips. At 2000+ person attendance it crashes the site so you can't see online pairings which makes everyone in the venue scramble to the printed pairings. When they announce banlist updates, the website crashes from the traffic. A lot of this feels like a solved problem from other big firms and game publishers, but the Japanese ones without fail have consistently awful software that feels stuck in the 90s by comparison.
Idk about UI design, but from personal experience, Japanese software feels really weak. I play a popular Japanese CCG and the tournament software they use is really bad. At the big events there's 30m+ of downtime between rounds because there's no automated way to input match slips. At 2000+ person attendance it crashes the site so you can't see online pairings which makes everyone in the venue scramble to the printed pairings. When they announce banlist updates, the website crashes from the traffic. A lot of this feels like a solved problem from other big firms and game publishers, but the Japanese ones without fail have consistently awful software that feels stuck in the 90s by comparison.