The optimizations that went into this must be pretty impressive for it to run as well as it does on my Framework laptop (11th gen, no dGPU). I did have to run it in Chrome since Firefox gets the "unsupported browser" error[0]. Glad I tried it out since typically "I made a voxel engine" wouldn't catch my attention. ;)
[0] console: "WebGL warning: readPixels: Format and type RGBA_INTEGER/UNSIGNED_BYTE incompatible with this RGBA8UI attachment. This framebuffer requires either RGBA_INTEGER/UNSIGNED_INT or getParameter(IMPLEMENTATION_COLOR_READ_FORMAT/_TYPE) RGBA_INTEGER/UNSIGNED_INT."; Firefox 104.0.1; openSUSE Leap 15.4
[0] console: "WebGL warning: readPixels: Format and type RGBA_INTEGER/UNSIGNED_BYTE incompatible with this RGBA8UI attachment. This framebuffer requires either RGBA_INTEGER/UNSIGNED_INT or getParameter(IMPLEMENTATION_COLOR_READ_FORMAT/_TYPE) RGBA_INTEGER/UNSIGNED_INT."; Firefox 104.0.1; openSUSE Leap 15.4