That is exactly the same feeling I have. Usually there is an empty feeling of "what now?" when the tour is over. But I was actually looking forward to the end and couldnt even be bothered with last stage (until I saw fast forward/skips today).
I very much doubt JV pullled on the final climb to put Pogacar in yellow. Pretty sure it was to test the legs of the opponents to see if anyone had a bad day. Its a game of seconds.