See offline renders like OTOY, that make use of CUDA.
However we could already have gotten them via WebGL Compute, as they are part of OpenGL ES, had its implementation not been sabotaged.
https://github.com/9ballsyndrome/WebGL_Compute_shader
https://registry.khronos.org/webgl/specs/latest/2.0-compute/
https://issues.chromium.org/issues/40150444