What is the impact of COVID-19 on the external auditor in the practice of work ?Discuss

What is the impact of COVID-19 on the external auditor in the practice of work ?

The following sub-questions emerge from this question:

Is there impact of COVID-19 on going concern assessment?
Does remote work have an impact on the work of the external audit ?
Can the auditor obtain sufficient and appropriate audit evidence during the Covid crisis ?
Does the COVID-19 impact on the report of external auditors ?