It depends on how good of a job they do, and if the road has a shoulder. If it's well done, it's not that bad. However, on a couple of the roads that I can't avoid, a few years ago they put down so much gravel that it was like riding in sand, and I had to give up and drive for a week. Even then, the gravel got pushed off into the shoulder and there was 4 or 5 inches of loose gravel in the shoulder, forcing me to ride in the main travel lane on a 60 MPH road even though there's a 2 foot wide shoulder.

After a few weeks they came through and scooped up the excess gravel and it's OK to ride again now.

When they chipseal a road, if I drive on it I try to drive outside the ruts where the gravel is still loose and not packed down, to help speed the process along.