Version 15.0.0 or higher (matching your keys).
Because the native Switch version uses aggressive dynamic resolution scaling to keep performance up, running the game on Ryujinx at a locked scaling profile looks night-and-day better. However, you can push the game further with community mods: Bayonetta 3 -v1.1.0 Ryujinx Switch Emulator- ...
To run commercial games legally, the emulator requires keys and firmware dumped from a hacked Nintendo Switch. In Ryujinx, click on > Open Ryujinx Folder . Navigate to the system directory and open the keys folder. Place your prod.keys file here. Version 15