You need at matching versions. For example:
: Generally, your prod.keys version should match or exceed the version of the firmware you are using to ensure full compatibility with newer games. Final Thoughts on Compatibility ryujinx firmware latest versions and compatibi link
A mirror site providing statistics on compatibility and a list of supported demos. Quick Setup Steps You need at matching versions
Do install the very latest firmware blindly. Wait 1–2 weeks after a new Nintendo Switch update to see if Ryujinx needs a patch. The Ryujinx team usually announces required changes on their Discord or GitHub . ryujinx firmware latest versions and compatibi link