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.
If you look around, you'll mostly find 14.04/16.04 in supported OSes. Even for OSS software, not just commercial stuff.