When traveling the desert, you sometimes find lakes. This was fixed on Console and Java Edition a while ago, yet it still exists on Bedrock Edition. Since deserts are very dry, a lake doesn't make much sense.

To Reproduce

Create a world with the seed 1602560007. Teleport to my coordinates. (Coordinates are in the screenshot.)

Note - This is for Bedrock Edition. I'm using a resource pack to make the game look more like Java Edition.