My sister & I went a day in the first part of October, prior to the hurricane. It seemed crowded, but not so much where we couldn't navigate the crowds. Of course we visited on a Saturday & had gone to Disney Springs.
We stayed on property 10/22-10/26. The only place it seemed crowded was our resort. We were staying at Riverside, and the crowds for the buses were insane. The parks and Disney Springs did not seem crowded at all. Most rides were walk ons, but the major ones we had FP+ for & the wait it the return lines never exceeded 15 minutes.