While more complex than EZMix, the "Easy Mode" on most Melda plugins provides a streamlined interface for quick mixing. Where to find: MeldaProduction Free Bundle iZotope - Ozone 11 Elements (Frequent Freebie) AI-powered "Assistants" that mix and master for you.
Though it's a "spectral shaper" rather than a multi-effect, Neutrino is a free tool that automatically adjusts your audio based on the source (Vocals, Drums, etc.), similar to the "set it and forget it" workflow of EZmix. 4. How to Get EZmix Legally (For Cheap)