Here is the full list of all 20 The Bridge achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Finish Mirrored Chapter IV.
Finish Mirrored Chapter III.
Finish Mirrored Chapter II.
Finish Mirrored Chapter I.
Catch the unchained key in The Mirrored Courtyard.
Cross The Bridge.
Finish Chapter IV.
Finish Chapter III.
Complete The Timepiece in less than 1 minute.
Finish Chapter II.
Finish Chapter I.
Complete The Library being no louder than a whisper.
Complete The Aftermath with 2 inversions.
Complete The Corridor with 3 inversions.
Complete The Mirrored Garden with 5 inversions.
Fall for 30 seconds.
Complete The Precipice without rotating.
Complete The Intersection without walking.
Complete all mirrored worlds.
Collect all hidden wisps.