Does fishing rarity increase beyond insanity 1-2 range?

i’ve looked at a few posts on this forum and never actually got a definitive answer about it, as they were made early into the dark sea’s release

I have no real cited proof that it does, but I managed to catch 2 legendary fishes around insanity 3 and 4 in the same server. Or maybe my luck was just crazy at that time.

No, it was never stated in the patch notes, so it cant be a thing

Probably used luck 4

You can get massive fish in dark sea which increases the rarity, idk if the massive chance increases in higher ranges