I gather #QAnon is implying a percentage of influenza deaths are being mislabelled as COVID-19.
This may be because of:
A - intercurrent infection with (non-testing/false -ve) influenza and (+ve/false +ve) SARS-CoV-2
B - Presumed COVID-19 pneumonia death without any testing for either AND actual death was caused by influenza.
The exact proportion of mislabelling is likely high but has not been accurately delineated yet and is politically charged.