No offense to you OP, because I really appreciate the posting you’ve been doing on this community lately.
But this seems to be one of the guides you’d see on Facebook where it’s not actually useful and is ambiguous on purpose to farm engagement instead.
At the very least this guide needs scenarios where you could use the substitutes. Such as applesauce in baking or flaxseed as binding in a meatloaf or something. Because not all these substitutes apply for every situation