So right I've seen some discussion on here about the monk's Unarmored Movement feature and how it should be interpreted, and there are a lot of different ways. The main thing I've seen is that the monk either falls after the 6 seconds in the round or when they stop moving.
The way I originally thought it would work was that the monk could just stick to the wall similar to Naruto, in which characters fight on the sides of mountains and stuff because they hold themselves there with their Chakra (which is kind of the equivalent of ki in Dungeons and Dragons). So I assumed that because of the ki, they could hold themselves above water and on vertical walls similar to spider climb.
Would it be balanced to houserule that 9th-level monks can use Unarmored Movement to stay on vertical surfaces or on liquids without falling, even if they end their movement there?