Comment by Animats
> Link one bank account (not your primary) to PayPal to receive money, and transfer received money immediately.
Costs 1.5%. Or wait a few days.[1] Plus a fee for receiving cryptocurrency. There are additional fees for buying cryptocurrencies, other than PayPal's own. And none of this is FDIC insured.
[1] https://www.paypal.com/us/legalhub/paypal/pp-balance-tnc?loc...
Their fees for cryptocurrency are small (between 1.5% - 2.5% depending on amounts, higher amounts have a lower fee), but they take it on both the buying and selling end. So if the amounts you're moving require a 1.8% fee, then for both buying and selling you end up with 3.6% in fees. Coinbase and most other CEXes charge this and they claim part of the fee is due to instability in the price, so this fee acts as a spread they can use to not lose money.