For what it's worth, for me it appeared nothing was different except I could leave the Default model on, upload a picture, ask it to generate a similar one with a change, and it just booted up Dall-e and did so. I'm not sure if everyone's experience is like this. I agree it's super annoying how they handle these things. I do still have the dropdown but, set to Default, it would generate images for me.

I do recommend logging off and logging back in if it isn't working. I've seen that update things for me.