I play with a group of mostly DMs, and we take the exact opposite approach.
so DM has full control and players have none?
Each guy runs something different. Some more different than others, obviously. It keeps things feeling fresh, and helps us scratch different itches, so to speak.
I mean just me (not counting other DMs) is always trying diffrent things to keep things fresh... my last few campaigns
a martial only game with heavy Asofai and lord of the rings but with some mortal kombat and yugioh world building thrown in (we used the middle earth 5e book for classes and hmbrew martial manuivers from 3e and 4e)
a wizard school game that was a short run that I pitched as (More xaiver institue that you are returning to as adults and less harry potter)
a very short 6 session murder mystery in a dessert setting 1 part Egypt 1 part middle east
a year long hunters game where the main PCs were 1 of a handful of traveling 'hunters of things in the night' where most commonors were afraid to leave a 3 mile radius of there house... where it looked like it was a ravenloft/castlevania thing with the lord of the empire being a vampire (he was that wasn't wrong) but turned out to be a DUne god emperor "He wants you to not only rebel but kill him becuse he has been the bad guy to help prep the world for worse" right down to presciences playing a big role
a curse of strahd right from the books
and a game of city mayhem where the party meets as a secret cabal 1/2 thieves guild 1/2 cult (pitched as 'what if vecna started the harpers and everyone had secrets)
the curse of strahd game ended so badly that I put the city game on hiatus and am not running agame at all right now while I play for a bit.
Nobody trys to run an Orc in my Dark Sun, and I don't take Thri-kreen into Dragonlance.
then who cares... if no one is asking I don't see the problem, my understanding (and I may have missed something) this wasn't "there have to be X in Y" it was "How do you react if someone asks to play X in Y"
if nobody asks how does that relate at all?
Nobody gets stuck as the forever-DM and we get to play different settings, styles, and character concepts without having to shoehorn a character into something where they don't fit. Works rather well for us.
it's funny in theory our way no one is supposed to be forever DM... the only issue is since 2006 every time we have pitched and voted I have gotten my setting picked.... so where I do get to play over the 3 games running at any 1 time (1 tuesday night and 2 alternating saterday night) this month or so is the first time in almost 20 years I don't have a game... and some of those times I had 2 or 3 games running (especially since besides my home games I used to run at stores to teach new players)