Biden's administration is more dangerous simply because they are more diplomatic and will try to better relations with the EU and SEA countries. Democrats would also be more open to immigration and trade, straying away from Trump administration's protectionist policies.If the US election Joe Biden, he can blame botching COVID and the BLM police brutality issues on Trump. Democratic Presidents are a lot more popular overseas than Trump.
You can see U.S. tech giants throwing all of their weight on Biden because Trump's immigration policies and trade policies have hurt their wallets. I think a Biden administration would open up more trade with China but they are equally anti-China, just more subtle and deceptive.
There has been a lot of talk on how China/Russia want Trump to win a reelection and I don't think that's without merit. Trump has showed how incompetent his administration his in dealing with crisis, and continually shooting itself in the foot by attacking immigration and stiring up racial divide in the U.S.