Oh wow, thanks for the images! I did not really notice this downgrade in terms of quality. I was always generating images with close up subjects.

Did you know that MJ V5 is not the final model yet? According to MJ team:

"Right now there is no V5 upsampler, the default resolution of V5 is the same as upscaled V4. If you click upscale it will just instantly give you that one image by itself."

They added

"V5 isn't the final step, but we hope you all feel the progression of something deep and unfathomable in the power of our collective human imagination."

Perhaps we can expect an improvement in the coming weeks?