Def sounds like Jan 6th is the big play. For those unaware, here's what happened Jan 6th, 2017:
A shyt show, as you can see. Biden (VP) at the time presided over it, because the VP is technically the president of the senate. On this upcoming Jan 6th it'll be Pence. Basically congressmen need a complaint signed by a US senator in order for it to be considered. They obviously didn't get a single senate to sign one in 2017 for obvious reasons, but if republican congressman get one senator next year it'll force a recess. Basically the house will huddle for 2 hours, and then a vote will be spurred. Trump would have to win the House and senate votes in order to "win" the election. Obviously that's not going to happen - he won't win either. The House because dems control it, and the senate because enough republican senators have already recognized Biden as president-elect to torpedo this IF it gets a vote in the senate.
Basically it's all bullshyt, and frankly the most pathetic and un-American thing republicans can do. We'll see...like I said, they just need one republican senator to start this process. Rand Paul and Ron Johnson have signaled they'd be open to it. Of course, McConnell can shut all this down by forcing them in line. Who knows.
Long story short: do NOT get concerned about this. Biden still will win.