I’m curious, what’s your awareness level of Rugby (Union or League), compared to sports in the US, or soccer worldwide?

I only have cursory knowledge, but seeing a number of videos of player/ref interactions make me think that the authorities are interested in having a game that is both physical and cognizant of the possibility of long-term injury. The players are not wearing helmets, and the refs are OK with using video review (with the videos playing out on the stadium screens) for all to see. It’s very different from US football or worldwide soccer/football.