Here is the full list of all 31 Yoku's Island Express achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Hatch the God Egg
Collect all Wickerlings
Discover the heart cluster at the bottom of the sea
Activate all Scarabs
Complete the story
Collect every ability upgrade
Complete Rinri's quest
Unlock all treasure chests
Get the biggest wallet
Toot the noisemaker 1000 times
Complete Willo's quest
Complete Thorn quest
Become the Postmaster
Try every ball style
Defeat the Spider
Defeat Screetch
Deliver the cake to the inventors house
Discover Fosfor’s Lair
Unlock all the Beelines
Save Spina
Complete the temple trials
Collect the Divefish
Customise Yoku’s ball
Ride the Beeline
Befriend a Sootling
Suck up a slug with the Slug Vacuum
Take the surviving egg to Dipperloaf
Toot the noisemaker 100 times
Find the Post-office
Free Kickback
Blow the noisemaker