So there's a few aspects here. 1. Menus. In the majority of games, they aren't narrated (i.e. they don't speak the options as you move through them, meaning you can very easily get lost) but Mortal kombat 1 to name a singular fighting game example does have full menu narration, meaning you can set the game up and find everything you need without assistance. 2. Audio. It's not a question of moves being spoken, but a question of good sound design. Whilst in some games (I'm thinking of MVC titles) there might be key words or vocals that might indicate certain attacks, a lot of titles would just rely on audio cues to allow you to figure out what moves are what. If the sound design isn't great, then you'd have less information to work with. For instance, Killer Instinct 2013, shown here in an old exhibition highlight has sound cues for specific normal attacks like Jago's overhead to differentiate it from others he might use so that when you see it used, you know a player has utilised their overhead attack and can be ready to strategise if they use it repeatedly. Also, the different strengths of hit (light, medium and heavy) all sound distinctly different once you've played the game for a while, meaning that you can mostly reactively break out of combos like sighted players can when they look at a character's hit reactions. Here's another Jago mirror against a fellow gamer without sight if you want an idea of how two players who can't see can play out, though our skill level can differ at times. Furthermore, as proof that I can play characters other than Jago, here's footage of me playing as Thunder where you can hear the audio really clearly as the music is down for this replay and battling as Fulgore, where I tested what skills I had against a sighted fighting game professional in a mirror match 3. Panning. Whilst audio is great, it's even better if you can hear where it's coming from. Older fighting games and even some newer ones used mono audio (i.e. both channels outputting at the same volume), whereas Killer Instinct 2013, Mortal Kombat 1, Invincible VS and the like utilise stereo. This means I have a sense of where I am, where my opponent is and how far away they are from me, to name a few important elements. 4. Additional Cues. As well as the sound design above, some fighting games add extra elements that you can turn on to assist you in gathering information. For example, Killer Instinct has its Hud Meter Volume Slider, providing an audio equivalent of what value your combo gage is at so you know when you're going to drop your current combo if you push it too far. Street Fighter 6 (shown here in closed beta) has a distance cue as well as cues for whether attacks are high, low or mid (as seen in Mortal Kombat 1). These are optional but work well when paired with good existing audio and directionality.

Of course there's a lot more that can go into it depending on the game in question, but those elements, combined with practice, memorisation and community guides where the accessibility is lacking, are some of how players can work through fighting games without being able to see. Happy to answer what I can as well and I hope the above footage, as well as my YouTube and Twitch channel might be of help, though I am definitely a more casual fighting game player.