What is going to happen:
The House will clearly go Republican.
Wisconsin will go Republican.
Pennsylvania will go Democrat (If the election happened within 10 days of the debate I think Oz would have won but the pendulum is slightly slinging back. Time erodes memory.)
Nevada and Arizona will split, one Democrat and one Republican. Not sure which will go which way.
That leaves Georgia. Neither Warnock nor Walker will get 50% on election day, forcing a mandatory runoff. The Democrats will conduct a HUGE "Get out to Vote" campaign before the run-off, particularly in the Atlanta area. Consequently, the run-off will go to Warnock.
Net result: Zero change in the Senate.
Democrats and President Biden will lose some power without control of the House and the margin will be large enough that it will be very difficult to get enough Republicans to cross party lines. One Senator crossing party lines can block the Democrats in the Senate (Joe Manchin, Kyrsten Sinema).
Sorry for ruining the suspense for everyone.