There have been zero quality polls there and Ds couldn't flip the congressional seat in 2018. Biden being favored there is an unreliable shot in the dark. I wouldn't hold your breath.
Biden is running 5-8 points ahead of the progressive Dem candidate (Eastman) in NE-2. Yes, there is scant polling to confirm that, but I think most people would agree that Biden should do better against Trump, than Eastman (female progressive with a background in non-profits) will do against Bacon (former air force general, who campaigns towards the middle, while voting in line with GOP). Bacon knows this as well, which is why he is going everything he can to avoid saying Trump's name. Don Jr. stopped by yesterday to stump for Trump, and Bacon didn't say shit on any of his social media platforms about it. The Eastman/Bacon race was within 2 points at the midterm, which was a surprise, and that was before a pandemic and unemployment spike. It's a coin flip now. Prior to the '18 midterm, CQR had Bacon at +4 and +7. Same pollsters currently have Eastman at +1. Both parties have had this race on their top 10 list for over a year.
As far as I can tell, neither Biden nor Trump have any appreciable ground force in the district. Biden is basically running his campaign through the Nebraska Democratic Party, in coordination with the Eastman campaign. I assume Trump's approach is similar. For my relatively Democratic area, I would say that Eastman signs outnumber Bacon signs 2:1, and Biden signs outnumber Trump signs 10:1. I can think of only five Trump signs I've seen on my walks, which is probably about a 3 mile radius. I see that as more of a sign of lack of voter engagement from the Trump campaign, rather than lack of voter interest, but who knows. My neighborhood is not a suburb, but is mainly white, educated, upper middle class, so a similar stereotype.
It's not just an "unreliable shot in the dark" that Biden is favored in NE-2. But obviously it's not a lock. Lean blue makes sense.
And speaking of outside money pouring into the race, if anyone wants to help my girl Eastman, and Biden by extension, here's a link to throw money at.