In Arcades you can actually interact easily with your team because you will interact with people around you but in online battles for consoles it's harder. It's rather you have an already friends team or you have to adapt to how random people play ... and that's if you are lucky enough to fight with actual people and not with the CPU..
This ^, so much this. The arcade version has a huge support, strong community JPN support, vocal support, and a lot more people playing the game over there.
- Intros/outros for the game runs at 60fps in the arcades. The console/PC version runs at 30fps for intro/outros
- They have avatars not available on the console/PC version (even exclusive avatar that will never reach console because some of them are arcade event based)
- More custom music at Dissidia arcade not available on the console/PC version
- Almost instant loading times via LAN support
- They have over 105+ teams in Dissidia tournaments, the west over here barely even makes the game competitive at events let alone on how many people play this game? roughly less than 100 for sure in the west. Imagine the PC version? you don't want to know
- They gain new characters early and able to free test them when you have a Square pass
Basically at times, it feels like the one we are playing via console/PC version is a cheap leftover version or some type of costco edition.