theres no point to look at that picure, its just a suggestion, u wont get anywhere if u take it seriously
even if u have few same ram kits, they may not work with same settings
so u have to manualy set up each timing and test it
mine ram has samsung B-die chips on it dual side with 3200mhz xmp (G.Skill TridentZ RGB F4-3200C14D-32GTZR)
under XMP timings i can get stable to 2933MHz, anything above is unstable
with ryzen dram calculator theree was no difference on either safe/ast settings, unstabl, unstabe, unstable....
im at 3333MHz atm which took me about 3 days to get there and most of what is setup is years away to what ryzen calc suggests...
there are no universal timings when u overclock RAM, mobo vendors will just test few kits and put them on QVL if they work overclocked with theirs max supported frequencies, AMD from time to time updates AGESA code which usualy adds support for few more kits, as for RAM makers, they just make rams, test them on few premium mobos and sell them with their highest possible overclock speed where they will work.
as for your RAM, gskill shows thats its working just on ROG CROSSHAIR VI HERO from asus x370/b350 mobos with 3200XMP timings