Where do the plans differ then?
Serious question.
There really is not that much difference in the agreements. Quite simply Trump got it across the line, Biden didn't. Certainly at the time of the Biden proposal I don't recall seeing 8 Arab countries getting behind the deal as they have with the Trump deal, and Biden simply wasn't capable of strong arming Netanyahu the way Trump has.
Knock Trump till you're blue in the face, but the fact remains, Trump succeeded where Biden failed.
If of course the deal holds, negotiations are ongoing.
https://www.bbc.co.uk/news/articles/cj3yke64vp6o
