I have tangem card and I did use seed phrase option, I imported my ledger seed into tangem, thinking it's safe, thankfully didn't message their support so I assume I must be safe? I mean my funds are still there.
If you didn't communicate with their support during one week after your imported you SEED your stash should be safe
You may check this via Tangem mobile app. providing Ledger SEED was not leaked in a different way .
P.S. I wouldn't use old SEEDs generated by Ledger to initiate any new wallet.
I checked tangem app, there is no in-app notification to me as they said you would get if you were affected.
Regarding importing seed, my old ledger display is impossible to work with so imported seed directly into tangem.
But yes, now gonna create new one with trezor.