If you want to be GPU-vender agnostic, then yes, KernelAbstractions.jl or AcceleratedKernels.jl are probably the most relevant options.
I see there are also WebGPU bindings JuliaWGPU · GitHub, GitHub - cshenton/WebGPU.jl: Julia bindings and native wrapper for the gfx webgpu implementation, though they don’t have any documentation.
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