Here is the full list of all 19 7 Billion Humans achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Red path fully optimized.
Orange path fully optimized
All levels complete. Congratulations.
Finish the Mom and Dad of Invention cutscene.
Finish the Morning Petroleum cutscene.
Blue path fully optimized.
Green path fully optimized.
Finish the Fitness Program cutscene.
A worker is shredded by a killbot.
A worker is a crushed by an appliance.
A worker exploded.
A worker is shredded by a shredder.
Your solution fails more than 50% of the time.
Finish the Intro to Morale Officers cutscene.
Listen to all worker thoughts in a level.
Solve any puzzle with at least 4x the number of commands required by the size challenge.
Solve any puzzle with at least 4x the number of seconds required by the speed challenge.
A worker fell into an infinite pit.
Finish the You're Hired! cutscene.