To get a 360-degree view of U.S. China policy, we must first examine China's posture in the recently declassified intelligence community (I.C.) report compiled by multiple intelligence agencies and published by the Office of the Director of National Intelligence (DNI).
Intelligence Community's Report
The I.C.'s recent report on election interference by foreign players stated with a high degree of confidence that China did not intervene in the 2020 election.
The report also cited the "minority view" from the National Intelligence Officer for Cyber that “China took some steps to undermine President Trump's reelection chances through social media and official public statements and media.” You can read it here.