@nadenislamarre i can confirm shaders are not applied with RetroArch on the latest Stable/Beta x86_x64 Batocera
You can easily check, choose shaders like the Pi3 version but when you apply, nothing is applied.
Even the "home" settings (Scanlines/Retro) are not applied by batocera
Can you check that? A lot of Games without Scanlines are ugly
Are you in vacation? If yes, good vacation mate 🙂