Minecraft kicking me out of the world or server

Hi, I would like to report a bug

Each time I open up Minecraft and join a server or a friend's world and then I switch my tab to something else, for example, YouTube. Then when I come back to Minecraft, I will automatically be disconnected from my friend's world or server
I've seen this happen on my PC on Minecraft Bedrock Edition

Please fix this soon, thanks!