Those that are implemented have been very reliable in my experience, I think that labeling them “alpha-quality by Linux standards” is a ridiculous claim
Then you need an Intel or AMD laptop as a frame of reference. M1 is implemented as-is with much of the silicon's onboard accelerators entirely dark. Hardware accelerated video encode/decode is a lost cause, Thunderbolt will likely never happen, NEON is your fastest SIMD accelerator and cpuidle is still not really figured out.
Those are all perfectly acceptable limitations for a POC. And the GPU drivers are particularly well-made. But it doesn't really come close to how seriously AMD and Intel take Linux.
