BoxedWine does OpenGL passthrough on platforms where available. This does not extend to the WASM/WebGL, but I really tried! I was able to get it working for some simple OpenGL applications with help from gl4es, but was unable to make it work with textures beyond one example [1]. I would appreciate some assistance if anyone has the required skills.

[1] - https://kevodwyer.github.io/boxedwine-examples/v1/boxedwine....