I'm not planning on using Intel Optane either. At this point it's still a pipe dream. Lots of talk with no delivery. About like ASUS with the XG2 that has been talked about for over a year and still not available in the US and where it is available they have been a failure. *By the time optane may or may not be a reality it will be obsolete, about like their attempt at SSDs with the 750 series that was superseded before it was released.*
There are some other key points with z270 chipset bios updates. *PXE fixed, Plextor M2s now working, memtest 86 fixed for a few. Again though if none of this has any offerings for what your use is it's best to leave it be.*
Some like flashing just because they can, nothing wrong with it so long as you know what you are doing and understand the consequences if things don't go 100% as planned. Most MOBOs now are forgiving where you can flash back or even replace the *BIOS ROM chips. Laptops are an entirely different beast. One mistake or malfunction and its bricked. The ROM chips are not replaceable and just getting to it to pull the battery and clip on a ROM *reader takes complete disassembly, been there and done that trying to get 2800 MHz Dram to work on a G752VY. It won't go last 2400 BTW!*
“Two things are infinite: the universe and human stupidity, I'm not sure about the former” ~ Albert Einstein