There are two possibilities: that Pompey/Trump want to sabotage Biden as you suspect; or that they don’t want this intel suppressed. Regardless, the timing of the release is unlikely to be a coincidence. Sadly, the deep cleavages in US politics are going to make most people view this through partisan eyes.

I am not inclined to dismiss this entirely though:

1) There were concerns about Gain of Function research long before Covid-19. I recall it was discussed on HN even (but can’t find the exact link)

2) There have been outbreaks of SARS linked to labs.

3) China has been secretive and uncooperative with investigations and has turned its wrath against an erstwhile partner (Australia) after that country’s government called for an investigation into the origin of the virus (maybe a coincidence as well though).

I am not inclined to unquestioningly believe the same government that lied/erred terribly on WMDs in Iraq, but I also don’t think we can unquestioningly dismiss the idea that the virus escaped from a lab that was doing experiments that would be expected to produce a virus of this sort, rather than a random mutation that just happened to be in a market in the same city.