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