Here is the full list of all 39 STAR WARS Jedi: Fallen Order achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
Scan all enemy types
Defeat 3 enemies using a single lightsaber throw
Slice an oggdo's tongue
Complete all of BD-1's holomaps
Collect all chests and secrets
Defeat an enemy with their own Slowed blaster bolt
Defeat 20 enemies with explosives
Defeat 25 enemies while they are under the effect of Empowered Slow
Find all of BD-1's stim canisters
Explore the crashed Venator
Send 25 enemies over the edge
Defeat an enemy by colliding them with another enemy
Unlock all Jedi skills
Precision Evade 100 attacks
Have a fully grown terrarium
Defeat an enemy with a hacked droid
Defeat each type of Bounty Hunter
Find all of BD-1's encrypted logs
Kick a phillak that has kicked you
Complete the story
Discover 75 Force Echoes
Open the Vault
Recruit all possible crew members for the Mantis
Defeat a former Jedi Master
Hit a single enemy with all lightsaber types
Craft a lightsaber of your own
Defeat four mysterious creatures
Defeat the winged terror on Dathomir
Defeat the Ninth Sister
Parry 100 enemies
Complete the Tomb of Miktrull
Free the Wookiees from Imperial imprisonment
Defeat an enemy using only kicks
Customize the look of Cal, BD-1, and the Mantis
Complete the Tomb of Eilram
Defeat 50 enemies with reflected blaster bolts
Discover the Bogano Vault
Fully customize your lightsaber
Join the crew