Here is the full list of all 12 Florence achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Completing the game
Play through all of Let Go without stopping
Reply only in Heart emojis
Keep both jars of Marmite/Vegemite
Unpack and keep both family photos on the shelf
Lose the fight to Krish in Groceries
Clean Krish's room in less then 15 seconds
Change the color of artwork 5 times
Get every math problem wrong
Hang up on Mom 5 times
Like all social media posts in Adulthood
Mismatch 3 numbers