In Minecraft 1.16.0.59 and 1.16.0.60 i created a plain texture pack that creates concrete and paintings into plain colors and no details at all but when i ignite my build (because im tired at it)
I saw that the bedrock had no texture somehow like it was only gray color i didn't edit the texture of the bedrock somehow and even i remove the Plain texture pack it is still there even i create a world without texture packs or addons or mods to play a normal creative the bedrock still gray what ever i do it will stay gray.