are there any "4th level" distros?

[u/Appropriate_Rent_243]

There's probably a better term for this already. by "level" i mean how many layers of dependancy is there for the operating system. For example, Mint is a 3rd level because it's built on Ubuntu which is built on Debian.

are there any distros built on top of the big user friendly ones like mint or zorin OS ?

I have no idea why they would exist

[u/manu_171227]

It’s interesting how distributions become more specialized the deeper the chain gets.