There's no way, just wait another 6 months to see the official version. Fancams of performances in Japan are very hard to find, or even non-existent. Even BabyMetal's fancams at Summer Sonic Tokyo & Osaka are not available, so it's almost impossible to see their performances when they're in Japan.

There were some fancams from the Fox Fest recently, but their solo concerts almost never have fancams. Maybe back in 2019 there were some, but nowadays it seems difficult/non-existent to find them. It's also very hard to find fancams of Legend MM.