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