Disable Elytra Fly - https://www.reddit.com/r/minecraftsuggestions/comments/ugwujr/minecraft_should_add_a_gamerule_that_makes_it_so/
Death Coordinates - https://www.reddit.com/r/minecraftsuggestions/comments/pf8s6q/gamerule_deathcoordinates/
Hunger Gamerule - https://www.reddit.com/r/minecraftsuggestions/comments/onmw2r/new_gamerule_nohunger/
Seven Wonders - https://www.reddit.com/r/minecraftsuggestions/comments/gsilr2/new_achievement_called_seven_wonders/
Chorus Void Saving - https://www.reddit.com/r/minecraftsuggestions/comments/ten4a5/chorus_fruit_should_save_you_from_falling_to_the/
Silk Touch Spawners - https://www.reddit.com/r/minecraftsuggestions/comments/j75kz0/updating_silk_touch/