If you do a search for “Pathfinder” under “Your Campaigns” on the website there’s a few dozen soundsets coming up.
However doing searches for “D&D” “d&d” “Dungeons and Dragons” “Dungeons & Dragons” “Dungeons” or “Dragons” doesn’t produce much, if anything.
Would be very useful if all the D&D soundsets were tagged to appear under a single search, and if they already have been would love to know what to put in the search box.