Does anyone here use their #coldcard strictly with NFC and their phone?

If so, I have some questions.

#asknostr

I bought a colddcard mk4 ages ago and set up my keys, plus a watch only wallet on my phone with Nunchuck using NFC.

When I bought a new phone, downloaded Nunchuck, and signed in I realized I'd need to export the wallet again to the new phone.

When I did that, it was an empty wallet.

There are clearly some gaps in my knowledge and I feel I could use some help.

I'd rather continue to use NFC.

I'd rather not just be told to go and watch BTC Sessions video.