Here is the full list of all 35 South Park: The Fractured but Whole achievements worth 1,000 gamerscore.
Use every available toilet in South Park and achieve the highest mastery level for each
Find all Yaoi art pieces
Put a stop to racism in South Park
Use all Allies' Ultimate powers once during the game, except the Coon
Win a combat by using TimeFart Pause to kill all remaining enemies at once before time resumes
Create a Black character and complete the game on Mastermind Difficulty
Unlock all combat TimeFarts
Find 10 costume pieces
Craft 10 distinct recipes
Keep an Ally alive for an entire combat while they take twice their max Health in damage
Obtain and equip Artifacts to reach 600 Might
Equip powers from 2 different classes
Pick a fight with Morgan Freeman and defeat him
Loot 100 Biohazard items
Craft a macaroni picture for Moses
Reach the highest economic value on your Character Sheet
Become mutual followers with 10 people in South Park
Successfully Fartkour to the Lofts at SoDoSoPa rooftop and back down again
Win while 3 Allies are downed at the end of combat
Reach the highest rank on 1 title in your Character Sheet
Wear costume pieces from 3 different sets at once
Foil the plans of Professor Chaos
Use a Summon
Defeat Mutant Cousin Kyle
Equip powers from 4 different classes
Craft an Artifact with a Might value of 75 or more
Use TimeFart Glitch to cause a status-effected enemy to lose their turn and die at turn's end
Survive the farts of future past
Defend a helpless child from a drunk lunatic
Kill an enemy by knocking another enemy into them
Earn the highest rank on 5 Character Sheet Titles, or 4 while having the highest Economic Level
Confuse or charm an enemy into defeating another enemy
Acquire and unlock all Summons
Use a toilet and achieve the highest mastery level
Collect all loot in the Homeless Camp at SoDoSoPa