tl;dr: Nvidia RTX Spark laptops like the MSI Prestige run Linux with GPU acceleration, but the GPU gets locked to ~780 MHz when plugged in (vs ~2.2 GHz on Windows), cutting inference throughput by roughly 5x on a 120B model. The culprit is the Windows-only Nvidia Platform Controllers and Framework, which decrypts a firmware power table that Linux has no key for. Until Nvidia ports that power management logic to its Linux driver, WSL is the practical workaround since it inherits Windows' driver stack and full GPU boost.