I actually asked "Eddie" from Stake.com during his weekly stream about the "friend" that opened a very similar casino to Stake.com and he said "not that I recall" ....but he also said that they are not too worried about sites copying their concept and that it was actually flattering that other people were doing this. (I guess, if you are printing money like them, you would not mind a lot if people copied you)
There are not a lot of big casino software developers out there, so I figure some people just buy a white label casino template from these guys and they just change the color scheme a little to fire up a new casino.

Well said and I wish the OP is following up on this and I also understand why the copy cat epidemic within crypto casinos,
This very copycat epidemic isn't just rampard with crypto casinos but with most of this digital Business and also the physical one, people always want to follow suit with what is trending and giving money as at the moment.
One thing certain in this very digital space is the fact that the competition is massive and the moment you give any chance, you'll be kicked out no matter the level of your professionalism.
I saw you mention FTX and I really felt bad for them and had to check the date of this post and tbis is also a constant reminder that, unnecessary competition and pride in business isn't right and necessary.