gnome is replacing image viewer with loupe so will fedora include loupe in default iso in 38 release
And loupe is the new gnome photos it also needed to be replaced by gnome photos image-viewer
If that’s the default in the next GNOME release, it probably will be available for Fedora Workstation 38. But, it might depend on whether it seems actually ready to go and has enough features to meet users’ needs. I would hate to end up delaying the release if there are show-stopper bugs come April.