i use EE on my parents tv (minipc connected to offline 4koled) to address the "movie too quiet then way too loud" for them but there is a cost, latency
fortunately its not large enough to notice unless you already know (i.e. problem for me but not for thee) AND fortunately MPV .conf can set audio offset globally to sync everything nicely, so its not bothering them; but i disable it if im going to play games where i need split second audio cue/reaction
the lack of vst support though, seems like a terrible oversight. obs audio filters with stacked vsts and routing filters can unironically do this programs job better because of the vst support, and depending on the setup choices, with better latency too
It's possible to run all of the audio output on a Linux box through a VST, if you want that.
For example: https://www.benashby.com/resources/pipewire-vst-carla/
Additional latency can also be dealt in ways that are probably good-enough for streaming/local media. Just make sure the audio output stack has a fixed latency and then adjust Kodi's audio offset to work with it.