Watch camera remote

Sorry, I have also updated to watchOS 7.6.1 and it's still there on Series 4, 5 & 6.

To make it easy:

On iPhone open Watch app > My Watch > App View > select List View

Now on Watch, press Digital Crown once and scroll down to find Camera Remote.

Well, I have it on my Watch Series 4, 5 and 6.

To function as a camera remote, your Apple Watch needs to be within normal Bluetooth range of your iPhone (about 33 feet or 10 meters).

Take a photo

1. Open the Camera Remote app  on your Apple Watch.
2. Position your iPhone to frame the shot using your Apple Watch as a viewfinder.
3. To zoom, turn the Digital Crown.
4. To adjust exposure, tap the key area of the shot in the preview on your Apple Watch.
5. To take the shot, tap the Shutter button.

The photo is captured in Photos on your iPhone, but you can review it on your Apple Watch.

Download it from the watch app store.