This is seriously lacking in terms of what's available on the market in Japan now.

No support for point payments (like RakutenEdy payment), neither Linepay, Rakupay, Merpay, Paypay and other QR payment providers, nor Suica or Pasmo pay, and this is still just the tip of the iceberg what's available in Japan and missing in Adyen (Nanaco, Waon, dPay, auPay, etc). Just saying, before you drink too much of that kool-aid.

I would assume it's lacking similarly in other markets too.