Unless there’s a GOP rep in a Biden district the Dems can swing over to Jeffries, we‘d still have the religious nut case as speaker
The Democrats would need two. A deadlock won't vacate the chair.
As you know all too well in NC, history suggests that once it's down to a single member who can produce the result, odds are good that a deal can be struck. The Democrats could do a lot with the Speaker's chair, right now. A large enough legislative side payment to flip someone should exist.
219-213 after Johnson from Ohio becomes president of Youngstown State requires flipping four members. That's much harder to swing. Everyone remembers what happened in the 2010 Senate elections after legislative side payments pushed the Democrats to 60 on the ACA. It's a lot easier to find one Kinzinger willing to die on a hill over principle than it is to find four.