Not a lawyer, but by resigning voluntarily, you basically relinquish all options regarding keeping the job that you would otherwise have had. You can’t later in

Not a lawyer, but by resigning voluntarily, you basically relinquish all options regarding keeping the job that you would otherwise have had. You can’t later invoke that you didn’t really mean to resign. It’s also often more advantageous to wait to be let go in order to collect severance pay. (Though likely not for the OP due to his probationary status, and there is also a big question mark regarding pay for the current government layoffs.)