My bank account where I should get my refund was closed, I'm not in the State anymore so how will I get my refund? May they send the check abroad to a foreign bank?

Call your old bank.  Tell them your refund is coming to the closed account and ask them if they can temporarily open the account till the refund is deposited then wire the money out of the old bank to your foreign bank.  If the rejects your refund back to the IRS, a paper check will be issued to the address on the return.  You can try submitting form 8822, Change of Address form if the address on the return is no longer valid.  This will give the IRS your current address to re-issue the check, if necessary.  The credits on your account are not going to be lost.  Once tax time is over, you can always call the IRS to inquire about refunding to your new address or crediting to your 2021 tax return. 

Here is a link to the form 8822 Change of Address.