Hello LZ
This depends on what currency the seller you are paying to accepts. If the other party accepts US dollars, it is better to bind the US dollar account. Otherwise, it is better to bind the Euro account. Otherwise, there will be an exchange rate conversion fee of about 2.5 percentage points.
In addition, PP supports binding multiple cards. If necessary, you can bind both.
I am the PP account manager. If you have any questions, please feel free to ask me by my name.