In the normal course of an audit yes. But an important point:
When matters come to light like the DS leaks, and a governing body finds the club guilty of, basically, fraud and misleading auditors, you can be sure the auditors would subsequently have followed up with management and increased the severity of their audit procedures. They would also certainly have received very specific confirmations from management and board that they have properly disclosed everything relevant in connection with UEFA's findings and, now, the PL allegations. Why? Because if the club had committed fraud and deceived the auditors, the auditors could fall back on their audit procedures as a defence. After the leaks and the UEFA charges, though, that would be no defence for the auditors. They would also be at heightened risk and, potentially, part of a criminal conspiracy..
That they still have given the accounts an unqualified opinion since 2018 means the auditors have satisfied themselves that the alleged matters are properly reflected in the accounts. Or, at least, they are satisfied to the extent that the allegations don't affect the true and fair view given by the accounts. Which, after all, is at the heart of the most serious allegations from the PL. If the Pl can't prove the accounts don't give a true and fair view, all that is left is some non-disclosures to the PL.