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