I had accumulated a large amount of Focus and wanted to take advantage of Low Focus enchantments. However in the video at the link, you can see how I sequentially use the healing rune, and the healing enchantment only works once, at the very end, when my focus is almost at zero. The gain exactly matches the percentage, but it happens at a ridiculously low focus.
I also have a similar enchantment on pants reducing stamina costs, but I don’t know how to test its functionality.
Note that I assume Low Focus works similarly to Low Health. However, there seems to be no confirmation of this in the game. If my assumption is wrong, then the player should at least understand how exactly the Low Focus enchantment works.
fiels: