If you remove America's biggest man baby, it's more or less a billion for each side in this graphic. ~1.2b to ~900m.

Musk's definitely a big player putting his thumb on the scale, buuut I'm pretty sure this graphic is missing primary spending, where corporate Democrats received a ton of AIPAC funding to beat progressive challengers, so...dk how much stock I'd put in that image. I also know for certain that it's missing the 633m of "dark" money that entered this election.