I can't find any dungeons on any world generated on the 1.17 version.

More information from EVGENSYPERPRO
Summary:
Dungeons are not generated when the "caves and cliffs" switch is on

Steps to Reproduce:

Create a new world with the experimental "caves and cliffs" feature
Try to find a dungeon

Observed Results:

You won't be able to find any dungeons.

Expected Results:

Dungeons will be generated.

Notes:

You can also use this website when searching for dungeons.
However, remember that the site may contain errors...