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.
Complete all mirrored worlds.
Finish Mirrored Chapter IV.
Finish Mirrored Chapter III.
Complete The Mirrored Garden with 5 inversions.
Finish Mirrored Chapter II.
Collect all hidden wisps.
Finish Mirrored Chapter I.
Catch the unchained key in The Mirrored Courtyard.
Cross The Bridge.
Finish Chapter IV.
Complete The Intersection without walking.
Fall for 30 seconds.
Complete The Corridor with 3 inversions.
Complete The Timepiece in less than 1 minute.
Complete The Precipice without rotating.
Complete The Library being no louder than a whisper.
Finish Chapter III.
Complete The Aftermath with 2 inversions.
Finish Chapter II.
Finish Chapter I.