Yes, you can get a Cash App card without adding bank account because Cash App card not linked to bank account. You can create a Cash App account with some personal details and you can order and activate a Cash App card.
Read more : <b><a href="https://squarecashelp.com/blog/can-you-use-cash-app-without-a-bank-account-or-card">Cash App without a bank account</a></b>