Comment by fc417fc802

IMO things have never been better.

Vulkan works approximately everywhere (except Apple, but that's entirely self inflicted and there's a compatibility layer so it's NotMyProblem). OpenGL is more portable than ever thanks to software implementations that yield far more consistent behavior between platforms than was available historically. WebGPU is actually fairly nice to work with, has a well maintained native implementation for two major systems languages, and both of those implementations have (AFAIK) fully functional WASM support. If it happens to gain a native Mesa implementation once everything stabilizes that will merely be icing on the cake. OpenCL has multiple competing implementations, including PoCL which is an adapter providing decently broad support on top of other backends.

And if you don't want to fiddle with native APIs (which no offense intended but you very clearly sound like you don't) there's quite a few choices available to abstract all the low level details away with cross platform cross API middleware which are FOSS and actively maintained.