What is a conspiracy theory other than a view that differs from those propounded by officialdom and the mainstream media, such as the "conspiracy theory" that t

What is a conspiracy theory other than a view that differs from those propounded by officialdom and the mainstream media, such as the "conspiracy theory" that the Covid vaccine did not prevent recipients from transmitting the illness, which was initially a conspiracy theory, only to become official confirmed later on? Or the view that the virus was the product of lab development, hotly denied by bands of scientists and governments, only for Slack discussions to be released showing that the scientists who made that statement were flat out going against their private views? The term "conspiracy theory" only proves that there is a "conspiracy" within government circles and the MSM to label views that don't align with theirs as "conspiracy theories"