Unfortunately I don’t think there has been a fan edit for the 1980 version of Flash Gordon (here or elsewhere) - though I hope to be wrong on that.

Yet there are a few fan edits for other incarnations of the films knocking around online - mostly based on the 1930’s versions.

If this new 4K release of the 1980 film has any additional deleted scenes or other BTS footage included in it… they could help make for an intriguing Edit (though I love the film as it is - faults, cheese, ham, fun, pumping soundtrack and all 😃)