My first time

Plants are healthy, but consider transplanting very very soon 👍👌👊🤘

With the size of the plant and the size of your pots it might actually be a root-lock which means the pot is too small for the plant and the roots have nowhere to grow. Start with repotting your plants in a bigger pot (I'd pot it in a 11 liter right away) and when doing that check if the roots are tangled within themselves, if they are then gently untangle the roots before potting the plant! After you repot them give them a nice nutrient rich (N-P focused/Veg) watering with at least 20-30% of it as runoff, and don't forget to make sure the pH is balanced. Also try to use a medium with good drainage in the new pot to prevent any water damage. Hope this helps! Good luck and happy growing :)

If the problem was fixed, the blotching and yellowing stopped spreading, and the plant started to grow again then you could remove any dead (little to no green left on it) foliage! Since the chlorophyll is gone (which is responsible for the green color and for photosynthesis) there's no real reason to keep that leaf. It's also best to remove those leaves to prevent any pest/fungi damage (like powdery mildew or fungus gnats). *About topping the same goes for it, if there's no more stress/problems with the plant growth then you can top her, if not I'd suggest avoid any stress to the plant until it is solved. Hope this helps! Good luck and happy growing :)

Looking at the plant I would adjust your plans for 4-5 weeks more, you're close but not quite ready yet.