There’s quite a few of us playing that are still new. The main point of the game is low execution barrier enabling fighting game beginners to play so you should be fine. Although there are match up details to learn, and mechanics to learn to exploit you should be fine. Most character’s nuances are pretty easy to learn.
The best way to get better is to just jump right in! The best way to learn is against other players! Don’t worry too much about winning or losing and see what you can learn from what other players do and how they play the game.
Besides, the best way to solve the problem of a smaller community is to not be afraid to play online. You are adding another player to the mix and it if other newer players start they will have a better chance of coming up against someone of better skill level!