This is probably not worth your time, as you likely won't play Fate of Atlantis for more than 20 minutes, but one thing that is possible through ScummVM these days that I think is cool is the support for Soundfonts. Soundfonts take MIDI songs and play them with the proper instrument the music intended (you probably know this but I don't remember how familiar I was with them before ScummVM supported this), and several people over the years have been creating their own soundfont files to try to reach that holy grail of making things sound as cool as possible.
Anyhow, personally, I like what this does for some of these old adventure games with MIDI support (and think that it sounds better than Adlib in a lot of cases). Some people go crazy for MT-32 support but I really only sometimes use that for Loom.
You can get two soundfonts in the links here:
https://forums.scummvm.org/viewtopic.php?p=97076#p97076
Despite the intro theme sounding better in Fatboy (IMO), I think I preferred UHD in terms of most of the game's music still being recognizable to how I remember it.
To get it working, in either the game or global options, go to the Audio table and override the global settings (well, if you are in game options, I guess). Set music device to FluidSynth. Go to the MIDI tab, change the GM mode to FluidSynth (this might only be available in global options), and direct the soundfont path to wherever you put your soundfont file.
Also, I think you said something about either having voice or subtitles? In that aforementioned Audio tab, you can force it to do both. That's how I always play it.
Anyhow, I think it's a fun game. There are definitely a handful of moments where it's easy to get frustratingly stuck, but much of it is fair. I don't think it's too much of a spoiler to say (since it was a big selling point for the game) that, after a certain point, there are three paths through the game. I avoided the fighting path for the longest time since I thought it was just going to be a non-stop fight fest like a certain part of the Last Crusade game, but even that route had some parts I really liked (and much of the fighting is avoidable).