The Gardens Between is a puzzle game with two main control mechanics, rewinding or forwarding time and activating friendly boxes and windchimes. There are normal 2-3 puzzles per level and a mini memory puzzle in between each level which contains normally a missable achievement.
This is not a full guide because I found this amazing video that in one hour will take you though the whole game. It works perfectly on Stadia so following this achievement guide will grant you 100% in about an hour