Dunno, his foreign policy strikes me as pretty close to what you'd expect if there was another/ 3rd term Obama/ Biden/ Kerry administration, with a few exceptions. There's lots of virtue signalling to show how different he is from Trump, not much actual action and mostly a rhetorical return to status quo ante, and we got some pretty obvious stupidities like the- somewhat- ludicrous statement that MbS would not be sanctioned for Khashoggi because "the US does not sanction foreign leaders". Which is news to a lot of foreign leaders, and precisely the sort of thing that Obama got himself into trouble with (eg his 'red line' in Syria, which turned out to be a kind of hazy squiggle). Stopping support for genocide in Yemen isn't exactly the bravest move in the world, and is far more of a return to Obama's policy rather than a punishment.
The big difference is probably Iran, where Biden has actually maintained Trump's policy over Obama's, while saying he isn't. Despite the US abrogating the treaty completely unilaterally and having admitted Iran was following it Biden wants Iran to return to full compliance before the US does, and renegotiate it too. That's absolutely 100% what Trump's policy was, to all practical purposes- Iran must continue to keep following the treaty we broke, while we ignore it and add multiple new conditions as and when we want. Pretty stupid approach if he actually wants the deal reinstated in any form, as Iran has elections in a few months that the reformists will lose spectacularly having had their cornerstone achievement crapped all over by the US like a coeliac eating a wheat vindaloo. Good luck getting anything at all out of a conservative government, but then that may well be the idea, so hands can be thrown up and claims can be made that Iran rejected the deal the US reneged on.
Should also be said, for all the treaties Trump reneged on only a very few- one?- have been reinstated by Biden like Paris. JCPOA, INR, Open Skies etc have all gone bye bye permanently, by all indications.