No this isn't a bug report, this is a request for whoever can port this mod FULLY to Forge-1.18.2.

Currently, I can't find a single mod that adds in the game's previous terrain generators for this version of the game specifically. It'd also be nice to allow for the re-enabling of the terrain gen from 1.16 and older for those who still prefer that style of terrain. Maybe even throw in an option to enable the old Ore distribution too while you're at it, or maybe even add an option to toggle the new caves added in 1.18.

I would port this mod myself, but I don't know how to code, so I'll leave this task to someone better-qualified.