False. China has a cash propensity of 35%, the USA is at 11%. Those numbers are for 2018. China still falls behind all developed economies in the Asian region for non-cash transactions.
China ranks the third of non-cash transactions organization after Eurozone and USA, and with its rate of growing, China will become the #1 in 2021, aka 3 years later.
Actually, in 2016, WeChat alone has already reached 500M transition/day[1].
As for cash propensity, it has nothing to do with non-cash transactions. Chinese ppl just love keeping lots of money in their bank accounts.
Your source says that China ranks third after USA and Eurozone by total number of non-cash transactions. It does not imply anything about the share of non-cash among all transactions. Considering that China has more inhabitants than either of the other regions, the share of non-cash transactions should be quite low, or they wouldn't rank third.
Even the most faraway small villages residents use Alipay or WeChat, they don't even know what is a POS or ATM.