So much research has been done, we essentially know the majority of the background details. The SARS-CoV-2 virus commonly known as COVID-19 was made in a lab by scientists. The virus then went from a lab to the global population in late 2019/early 2020. The epicenter of the outbreak appears to be one of the labs working on the virus in Wuhan, China. Those essential big picture items are no longer debated; although the Chinese government does not agree for obvious reasons.
With the ‘where’, ‘when’ and ‘how’ essentially agreed, the question of ‘who’ and ‘why’ remains.