ManMoth_2022: Oh yes. I have some from Steam, and this isn’t my first from GOG, either. I actually have some of the other King of Fighters and they all launch just fine (some of the older ones play at hyper speed, so I had to remove the rom file and play them in MAME, but I don’t have that option with this game).
Speed is usually affected by refresh rate of the monitor being higher than what these games were designed for and some ports here are not very good on the technical side (mostly the early dotemu ports, etc), so the speed of the emulation got tied to the refresh rate. Try 60hz on your display and try to enable vsync in game, it should fix it. Alternatively use fps limiter to 60fps, but some of these ports are stubborn and have to do it with refresh rate / vsync. Although mame is better option in general in those cases, if you use it already.
CodeMystics ports are great though, they mostly come with rollback netcode and other neat features.
I'm kinda out of ideas why it doesn't work. When stuff didn't launch on my end, it was usually a problem with drivers and redistributables (directx/dotNET/gpu), or settings/resolution was not supported (my old monitor+gpu combo oddly enough couldn't display 640x480 for example). The longest issue I ever had (after reinstalling all the relevant drivers and redistributables) was having a corrupt dotNET install, and when I reinstalled it, it did just said it completed the task but reality it did nothing. Had to use netfx_setupverifier to verify each version of dotNET and found one of them in the middle of the list was corrupt, so had to use repairtool then to fix it. What a pain!
Tried to launch the game, it starts by default in 720p fullscreen, shows the logos, plays the intro and creates profile/save file. Btw you can check that video subfolder and try to play some wmv file to see if it is not a video codec issue affecting the launch. Although I doubt it since we tried to disable the cinematics. I've also checked pcgamingwiki if there is any other info - it says that on 2TB+ drives it might have an issue with launching, but I launched it just fine from 4TB drive just now. Worth a try though.