Removed Recipes adds all removed Java edition recipes, It adds 14 removed recipes back into the game, like these:
Added: 20w06a
Removed: 20w10a
Added: 12w21a
Removed: 15w44a
Added: 13w16a
Removed: 13w18a
There are more recipes as well! There is JEI combability meaning you can see recipes for items! All recipes can also be found here https://minecraft.fandom.com/wiki/Crafting#Removed_recipes (Check for the Java Edition ones and discarding the chainmail armor, other wool colors coming soon)
