Ok, in the Xbox Console Companion App, when I view the Chestful of Cobblestone achievement, there is a reward for earning said achievement. But, when I open Minecraft, there is no such reward. This is the same for many other achievements. I bring this to your attention because I noticed in the latest Bedrock Update, 1.16.100, there was, in the change log, a dozen new rewards for achievements. I have unlocked many of the achievements that show that there is supposed to be a reward, but the rewards are not showing up in the game. (The second picture is from my brother's profile, but as you can see from the first picture, I have earned the achievement. Sorry if that is a bit confusing).