There are several conspiracy theories this group has latched on to, especially the belief there is a network of people, including in the U.S. government, that wants to take down Trump and his administration, according to The New York Times.
With the outbreak of the Coronavirus, QAnon followers have begun to spread false "treatments" for the virus. Furthermore, the group have accused liberal billionaire George Soros of rigging the Iowa Democratic caucuses following its flawed outcome.
A previous theory, according to NPR, held that Special Counsel Robert Mueller was not actually investigating allegations of Russian interference and collusion in the 2016 election. Rather, the former FBI director looked into prominent Democrats — including former President Barack Obama and Hillary Clinton, Trump’s 2016 opponent — and their relationship with Russia or potential connections to a massive (unsubstantiated) pedophile ring.
Another belief is the military asked Trump to run for president in order to deal with the nefarious group of people in government, according to NPR.
The group also has its own lingo. Aside from calling the leader simply "Q," they refer to those who attempt to debunk the group and its theories as “clowns,” and those who follow along as “bakers."