Biden will be worse for China because he can rally Europe and East Asian "allies" to create an informal yet formal coalition that excludes China from technological preeminence.
How?
1. Create an open-yet-closed system where technological standards and regulations are set by the aforementioned coalition. This means China only has the heft of its large market to counter such a predicament.
2. China could be automatically excluded by the reasoning that it isn't a fully open market economy. That creates pressure on Chinese authorities to open up on US gov will.
3. China's BRI could be countered by a collective action fund created by the blessings of Europe-US-Japan.
4. US would be more successful in enforcing its will regarding semiconductors and 5G since Trade war with Europe and Japan/SK is removed or curbed.
5. Now that Canada US relation are getting warm, A Britain led CANZUK alliance could become a reality. And that Alliance could work better with US.
6.India US relations will get warmer now that there is no trade war and complaints with India.
Biden is bad. Extremely bad.