What will happen on 1/6/25?

Your scenario is pure fantasy. Assuming Biden wins the Ds will follow boringly normal procedure and get the EVs approved quickly and without any grandstanding.

I am unaware of anyone who has credibly suggested anything out of the norm would take place.

I predict this will be 100% wrong. When Biden wins, the Dems will go out of their way to ensure the process runs as smoothly as it did every election through 2016 – and that any shenanigans by the GOP are seen as idiotic grandstanding by whiny losers.

ETA: What @Kolak_of_Twilo said.

Thirded. It’s ridiculous to think that 20 Democratic Senators and 88 House Democrats are going to sign onto a pointless “symbolic” objection. That’s not to say there wouldn’t be an objection to a genuine move by Republicans to subvert a state’s election results.

Yep. Dems know their voters just want to return to “normal” governance. The “payback” fetish is a GOP kink.