China's official numbers claim they have only had a little over 100,000 cases and less than 3,000 cases. At this point, no one believes what they're reported.
The lying goes back to the very beginning in Feb-2020 when they didn't report low-acuity or asymptomatic cases. Local officials in Wuhan undercounted and underreported the case numbers out of fear of reprisal from the national government. No effort was ever made to correct the record.
China Says It's Beating Coronavirus. But Can We Believe Its Numbers? [Time - 1-Apr-2020]
There was an obvious disconnect between what was being reported in Wuhan in early 2020 and what the news reports were showing. China was reporting low numbers in Wuhan, yet they undertook a massive project to build a huge field hospital. Before the national government cracked down on social media, there were anecdotal reports from people in Wuhan that patients were dying in emergency room waiting areas. Pictures leaked out of large pallets of funeral urns that were shipped into Wuhan. Hundreds of thousands of people disappeared from China's pension rolls.
Vanished 150,000 elderly residents raise doubts about Wuhan's Covid death toll[Taiwan News 18 Feb 2021]
China is underreporting coronavirus numbers to ‘extend political influence’: CCP expert [Fox - 4 Feb 2021]
Statisticians are starting to unravel data for 2020, when there were large outbreaks in major cities at a time when morgues were not testing the deceased for COVID-19 and the tests that were in use were not reliable. I've seen estimates that NYC may have had 25,000 more COVID-19 deaths that were reported and London may have had 10,000 unreported deaths. One statistician has estimated that the actual death count from COVID-19 in the US may be nearer to 900,000 instead of the 735,799 deaths reported.