Q.Banana tree houseplant
In the past, my banana tree produced a couple of offshoots which grew larger than the original plant. These eventually “killed off” the original plant and one of the offshoots resulting in just one plant again. The “winner” is now big and healthy but has an offshoot growing right beside it and under its leaves. Should I cut this offshoot back to dirt level? Because the offshoot is attached I don’t think I can or should try to remove it totally.

This article should help
https://www.gardeningknowhow.com/edible/fruits/banana/dividing-banana-pups.htm