So what hours is the Online most active and is the game region speciifc?

[Sendai-Horatio]

I'm curious because I'm afraid to start it yet due to the three online trophies. If I can't find anyone, I was thinking of eventually self boosting with a PS5(when I'm able to find one) but there's no other US physical edition other than the $150 NISA version, so would a Japanese and US copy be able to play with each other?

[Mitzuharu]

When you search for an opponent you can set your region to search for opponents everywhere instead of same region.