No, other web exports work okay so far. Looks like one of the passes/shaders don't draw anything, maybe FF under linux don't support some extensions, or maybe my video driver borked up smh :(
Viewing post in Brewing A Gain jam comments
Thank you for getting back to us! Our programmer is asleep at the moment, but I think he would be interested in this issue. It's great feedback to hopefully avoid this next time! I hope you get a chance to play it on another device (mobile technically works but is quite laggy as it wasn't intended for that). Otherwise, thank you again for your time!
ERROR: Shader GMTK 2024.framework.js.gz:3:36099
Hidden/Universal Render Pipeline/Edge Adaptive Spatial Upsampling shader is not supported on this GPU (none of subshaders/fallbacks are suitable)
Gives me this, hope this helps.