Unless this still applies:
For now we know that crypto will be converted to fiat at the time of purchase happens.
Yeah, I think that still applies. I think dkbit98 was referring to this part when he wrote that:
Convert to fiat at time of purchase
Your crypto will only be converted at the time of purchase. Link your crypto wallets to the card in priority order for seamless spending.
https://cl-cards.com/waiting-list/I've never seen a debit card that holds a balance in Bitcoin and converts it only when you make a purchase.
I have never used one so I wouldn't know the way they work exactly. But I don't see why their couldn't be a conversion from crypto into fiat at the moment the card is used to make a purchase or transaction. It only converts the exact amount you are required to pay while the remaining crypto is left intact.