that's easy, they don't spend money on developing drivers for Linux.

Every OS they support costs money in developer time. It's a commercial trade-off what Operating Systems to support.

Put it this way, do you see lenovo or Dell or HP developing drivers for OpenBSD? there's no commercial ROI on that, so they don't

In this case it would appear that Lenovo don't think there's a commercial reason to help out with Linux drivers.

timed comments seem to increase with thread depth. Apologies if you think things are circular, I've just been responding where people replied to me with points that I felt warranted a response, which seemed like a reasonable thing to do in a discussion thread.

I would surmise the signature edition contract with Microsoft probably requires Lenovo to have their laptops at optimal performance. Suboptimal performance must not occur, hence the blocking of other non-RAID options.

It would be interesting to see how this is achieved in other pc's in the signature edition range : https://www.microsoftstore.com/store/msusa/en_US/cat/categor...