It seems suited to 3-minute chess.
The glorious Napoleon attack works even against Caro-Kann!

If black knows how to move his queenside knight Qf3 is always a horrible mistake.
Nonsense. Qf3 is well known opening idea. Many masters and even GMs have used it on different levels...
Why would black play caro kann and voluntarily lock up his white squared bishop with e6 ? After a logical move like c5 black seems equal to me in the better version of the advance variation with c5 with a silly queen on f3

The queen can actually stand well on f3 in some lines of the Caro Kann.
There is the line in the Mindeno variation of the Two Knights Attack.
So there is this other variation called the Goldman variation where white plays Qf3 immediately instead of Nf3.
And this actually a fine line.
The Napoleon attack generally I don't agree with but there are many lines where the queen is good on f3.
I tried the famous Napoleon attack against Caro-Kann and it worked surprisingly well. My much higher rated opponent didn't chose the best plan as you can see but still it was quite a nice game. Feel free to comment and give me tips.