I just noticed this, what should I do? Sorry for the vague question but I can’t find any good articles on what this is.

Everything I find starts the same way “top 8 reasons for brown leaves”. Then says too much water, not enough water, too much light not enough light too much fertilizer not enough, wrong kind of fertilizer and so on and so on. That isn’t helpful! Do I just have to guess? Why is all plant knowledge basically voodoo?

I’m tempted to take a cutting so I have a spare to try again if it all goes wrong, but the plant only has 5 leaves, so I’m stressing out.