How to know what WebGL GPU / backend webassembly is using

[craste...@gmail.com]

At runtime, is there a way to ask the driver who or what is the backend behind a particular CONTEXT handle?  I have a case where the hardware acceleration was enabled, but I suspect it is using the Intel GPU, rather than the AMD Radeon GPU.

If it matters, I am asking for 4 sample MSAA. Could that make it switch GPUs?