i did check again, and there is no option for crypto payments. i even tried from different geos using a vpn, thinking it might be available only for certain countries.
I'm not sure, but I've tried accessing my account and creating an order from VPNs in Falkenstein (germany), Montreal, and Dallas/LA and I've always seen it. I technically don't qualify as a US user to them I don't think - I don't live there currently.
It's strange how crypto is not listed as a payment method on their help page.
There is some article from July 2024 talking about how they "opened" crypto payments with CoinGate, but I've been able to use crypto as far back as a year ago.