WD Red wd40efrx

I’m using 10 wd40efrx drives in a linux based nas. i read that the wd red drives are not really meant for raid as they are SMR drives. Anyone else experiencing this?

https://raid.wiki.kernel.org/index.php/Timeout_Mismatch

WD40EFRX this is not a SMR drive. feel free to check out the WD website once again