The concept is fun. I like the twist on a classic .io style game where you have to be a bit more active and thoughtful to score.
There were alot of times when I'd stab another snake and I would die instead of them. Idk of that's an intentional mechanic that I just don't understand or a bug.
I think binding your collection of letters to number keys would have made it alot easier to maneuver the environment and make words at the same time.
Also fantastic job of making it seem like multiplayer when it isn't.