A followup, cos I didn't cover a lot of the possibilities the first time.
See the main video here    • CS:GO 2022  Which noises can be heard?  
And the old video here    • Which sounds can enemies hear?  

0:00 Intro
0:17 Bomb beeps
1:01 Dropped / rolled bombs
1:18 Picking up bomb
1:28 Masking defuse sounds
2:12 Picking up grenades
2:31 Flash bang pins REVISITED
3:19 The grenade throw bug
3:31 Different grenade bounces
5:06 Jiggle peeking
5:30 Empty gun firing
5:53 Revolver click
6:04 Dropping items onto higher surfaces
7:02 AUG and SG scoping
7:39 Spray paint
7:45 Ending