This Data Pack Adds More Advancements For The 1.21 Experimental Feature And For The Armadillo Too And The're Compatible With The 1.20.5 Snapshot And With 1.20.3 And 1.20.4 Too. Here's For The 1.21 Update

Title	Description	Icon	Actual Requirements	Name	Parent	Frame	XP Reward
Auto-Crafted!	Craft A Crafter	Crafter	Have A Crafter In Your Inventory	minecraft:craft_a_crafter	minecraft:adventure/root	task	0
Copper Leaves	Craft A Copper Grate	Oxidized Copper Grate	Have A Copper Grate In Your Inventory	minecraft:obtain_copper_grate	minecraft:adventure/root	task	0
Advanced Redstone Lamp	Craft A Copper Bulb	Copper Bulb	Have A Copper Bulb In Your Inventory	minecraft:obtain_copper_bulb	minecraft:adventure/root	goal	1
Realistic Stone	Craft Polished Tuff	Polished Tuff	Have A Polished Tuff In Your Inventory	minecraft:obtain_polished_tuff	minecraft:adventure/root	task	0
3D Art	Craft Chiseled Tuff	Chiseled Tuff	Have A Chiseled Tuff In Your Inventory	minecraft:obtain_chiseled_tuff	minecraft:adventure/root	task	0
A Better Stronghold	Find A Trial Chambers Structure	Cut Copper	Enter A Trial Chambers Structure	minecraft:enter_trial_chambers	minecraft:adventure/root	task	0
Wind Hunter	Kill A Breeze From A Trial Spawner	Breeze Spawn Egg	Kill A Breeze	minecraft:kill_a_breeze	minecraft:enter_trial_chambers	goal	1
The Key Of The Trial Chambers	Obtain A Trial Key From The Trial Chambers	Trial Key	Have A Trial Key In Your Inventory	minecraft:obtain_trial_key	minecraft:enter_trial_chambers	task	1

Keep In Mind That You Will Need To Turn On The 1.21 Update Experimental Feature For Them To Work. And Here Is For The Armadillo

Title	Description	Icon	Actual Requirements	Name	Parent
The Bush's Leaf	Brush An Armadillo	Armadillo Scute	Interract An Armadillo Using A Brush	minecraft:brush_armadillo	minecraft:adventure/root
Combat Fashion	Craft A Wolf Armor	Wolf Armor	Craft The Recipe "minecraft:wolf_armor"	minecraft:craft_wolf_armor	minecraft:brush_armadillo

Keep In Mind That These Advancements Won't Work On 1.20.3 Or 1.20.4 But They Will Still Work On 1.20.5 Snapshots Too