Not sure how CoinDebit virtual cards work because I didn't test it myself, but I know they are not connected with your identity, unless you make a mistake and buy them with BTC from kyc exchange.
I have tried the virtual one once and I was able to pay for it using Lightning. There were no fees and the exchange rate USD <> BTC was exactly what my
LED Bitcoin dashboard (hitbtc.com API) was displaying (negligible difference).
However, it was not accepted for an online sports channel subscription (1 month). Either they don't accept debit cards in general, or you need to load it more generously (not like me).
I do think these kinds of one-time debit cards (existed in the past even without crypto; you bought them through your actual credit card) make most sense if you can load them with
just the amount needed for a purchase, so that you don't need to use them twice or have a bunch of them with $2 each on them that you can't spend.
One such example that (in a video I saw) was very well integrated was a service that came with a browser extension, which recognized payment pages. Once you landed on a shop's payment page, the extension would create a one-time card with the exact amount needed, and display a Lightning invoice. Once that was paid, the card details were entered into the website automatically, so from a user perspective, you never really 'touched' a credit card number or anything like that, and
basically paid in Bitcoin directly.
As far as I know, at that point it was a video POC and it wasn't production-ready; unfortunately, I can't find it anymore either. Maybe my description sounds familiar to someone who can recall the project name.
Again, that only works if the shop or service where you plan to use the card, doesn't require some buffer of extra balance.
