PayPal does support (at least some) 2FA methods as my first YubiKey (~6 years ago?) was a "YubiKey VIP" that worked with PayPal (6-digit codes). There was also a "Symantec VIP" mobile app that you could use (very similar to Google Authenticator) instead.

PayPal also had their own security device you could get. I think it cost $5. Not sure if it's still available.