Here is the full list of all 35 South Park: The Fractured but Whole achievements worth 1,000 gamerscore.
Created a Black character and completed the game on Mastermind Difficulty
Picked a fight with Morgan Freeman and defeated him
Survived the farts of future past
Used all Allies' Ultimate powers once during the game, except the Coon
Found all Yaoi art pieces
Reached the highest economic value on your Character Sheet
Used every available toilet in South Park and achieved the highest mastery level for each
Collected all the loot in the Homeless Camp at SoDoSoPa
Used a Summon
Defeated Mutant Cousin Kyle
Unlocked all combat TimeFarts
Confused or charmed an enemy into defeating another enemy
Equipped powers from 4 different classes
Acquired and unlocked all Summons
Crafted a macaroni picture for Moses
Put a stop to racism in South Park
Obtained and equipped Artifacts to reach 600 Might
Crafted an Artifact with a Might value of 75 or more
Successfully Fartkour'd to the Lofts at SoDoSoPa rooftop and back down again
Foiled the plans of Professor Chaos
Won a combat by using TimeFart Pause to kill all remaining enemies at once before time resumed
Earned the highest rank on 5 Character Sheet Titles, or 4 while having the highest Economic Level
Killed an enemy by knocking another enemy into them
Reached the highest rank on 1 title in your Character Sheet
Kept an Ally alive for an entire combat while they took twice their max Health in damage
Won while 3 Allies were downed at the end of combat
Used TimeFart Glitch to cause a status-effected enemy to lose their turn and die at turn's end
Wore costume pieces from 3 different sets at once
Defended a helpless child from a drunk lunatic
Crafted 10 distinct recipes
Equipped powers from 2 different classes
Found 10 costume pieces
Looted 100 Biohazard items
Became mutual followers with 10 people in South Park
Used a toilet and achieved the highest mastery level