On version 17.6.1 on my iPhone 14 where is my hidden photos album

You may need turn on the Hidden album to show in the Settings: Delete or hide photos and videos on iPhone - Apple Support

To turn off the Hidden album so it doesn’t appear in Albums, go to Settings  > Photos, then turn off Show Hidden Album.

Do the same to make the album show again, but turn "Show Hidden Album" on.

In addition to what léonie said, you may need to know that the Hidden Album doesn't appear if you have not hidden any pictures. If you haven't already, try hiding a picture, maybe a worthless screenshot, and see if the Hidden Album appears.