I think the parent means that it may take some time until the hardware support gets to Linux kernel. I bought a Broadwell laptop right when the first ones came

I think the parent means that it may take some time until the hardware support gets to Linux kernel. I bought a Broadwell laptop right when the first ones came out, and had a lot of trouble with the integrated graphics (Intel, who supposedly do a good job with their Linux drivers compared to anyone else). It took about an year for Ubuntu to package a kernel that didn't either have annoying blinking glitches or hard lock-ups regularly. Obviously, I've been using the mainline kernels all that time, but even with them it took a couple of months. So yes, caution and patience with bleeding edge hardware is advisable.