Showing path of wallpaper does not work anymore with Sequoia

(Crossposting Note: I have also asked this question on Stackexchange, but never got a response there: https://apple.stackexchange.com/questions/476478/path-to-wallpaper-is-not-displayed-anymore-on-sequoia)

I configured my Mac to show different wallpapers on each MacOS Space.

Until now, I had the path to the wallpaper shown on the screen as well. I had done this by setting

defaults write com.apple.dock desktop-picture-show-debug-text -bool TRUE;killall Dock

However, since my update from Catalina to MacOS 15.1 (Sequoia), the path is not shown anymore, even after re-issuing the defaults write ... command.

Any idea of what I could do to find out the path to the wallpaper in a certain MacOS Space?

Note that

defaults read com.apple.dock desktop-picture-show-debug-text

displays 1, from which I conclude that the value was indeed set correctly. It just seems that Sequoia ignores it.

Has this feature been removed in Sequoia?