The above guide applies all the same, because the relevant configuration handles only partitions. So what matters is not actually the drives themselves, but their partitions.
Let be honnest, the partitioning stage in Manjaro during install is not that easy nor intuitive for beginners, at this point i gave up here just to be sure to make as cleanly as possible my partitions with a live GParted CD befor 2e install essay
And after install i had to ask help here to edit my fstab because my swap space was not recognized
Sure, but there’s no content here. Why make a separate tutorial that links to another tutorial? Maybe rename the tutorial to [HowTo] Use multiple drives / partitions in your Manjaro installation.