This has no online play, for one
As part of the ACA NeoGeo line that’s been hitting Switch lately, classic fighter Garou: Mark of the Wolvesis coming to the very same platform. It’ll drop on May 11 for $7.99, but you should definitely look into grabbing it on PS4/Vita instead (it’s on PC too, but has issues).
For one, since this is an ACA joint, it won’t have online play — whereas the other aforementioned platforms have been reworked to accommodate. That can be circumvented by bringing the Switch tablet on the go and playing with friends locally of course, it’s just something to be aware of. Another thing to be aware of is that there’s still no official arcade stick for the Switch. Hori is supposedly making one but it hasn’t been dated or priced.
If you can get over all that I’d get Garouregardless. It’s one of my favorite fighters that I still play to this day.