I'm so frustrated my game is download only because I used unreal.  I looked into the html5 but it looked questionable on UE5 so I didn't try.  Would love to practice in unreal more with the jam but I don't like making download only games. Has anyone gotten the addon to work in 4 or 5?

Nope. It's so frustrating and used to be a core feature. Wish Epic would fix this and make it a default option again.