I thought the recent update by the BG3 mod manager meant you no longer required the mod fixer if you were using the BG3 mod manager. No idea about vortex, or the old but still being updated nexus mod manager
EDIT: I have not actually tried modding the game yet, i'm waiting until after patch 1, but I'm trying to keep an eye on things.
No. Simplified version: there was a version of this mod called Patch 3 Mod Fixer which served for all the patches from 3 to the end of EA. Then came a version called Full Release Mod Fixer which appeared after the release of the full game. Due to some sort of ownership/licensing malarchy these two have now been replaced by Mod Fixer.
BG Mod Manager (or Vortex) is required to install the mod.
99% of the mods for BG3 consist of one file and require a handful of mouse clicks to install. The other 1% consist of one folder and require a handful of mouse clicks but don't require a mod manager.
Mod Fixer (or a successor) will be required until if and when Larian release some sort of editor for the modding community to use.
