I share my Idea that would COMPLETELY IMPROVE Minecraft, and it would look great in 1.19: WATERFALLS! The ones we currently have are NOTHING like the ones in real life, it's just water coming out of a mountain, and that's more like a Spring, and at least it should be the beginning of rivers, but no. My idea is that the Springs are the beginning of some rivers, and that they have relief, so if a river overflows, there will be a waterfall below, and there would be three types of waterfalls:
Spring: In some cases, it marks the beginning of a river that may have more waterfalls, and this could indicate that there is a lake inside a mountain.
Leaning Cascade: It would be like a descent into a river, and instead of falling straight to the ground, it would be like a water slide (they exist in real life)
Regular Cascade: These, unlike the inclined ones, would fall directly to the ground, they would be like several in real life, they could fall near aquifers and others. Also instead of the waterfall following directly with the river as it would be with the inclined ones, there would be a small lake, or lagoon before the river follows, and who knows, probably the lake would not have to follow the river, and end there . This idea is to improve the rivers, since they all connect directly to the sea, and the current waterfalls are somewhat UGLY. Add it to 1.19 and you could form BEAUTIFUL landscapes