Most importantly, if you are not using the Early Access Steam version of QC you will still need the Bethesda Launcher to download any QC game updates or to verify your game files if necessary.
⚡ It is very important to recognize that QCLauncher does not entirely replace the Bethesda Launcher. QCLauncher has just 2 files, uses very few resources, and can be configured to immediately exit after launching the game. With it, you can launch Quake Champions without running the Bethesda Launcher or having the Bethesda Launcher open. QCLauncher is a small tool for Quake Champions.