Still persist in 1.16.0.60
Confirmed in beta 1.16.0.59
Items also randomly despawn when you're 54 blocks away, for some reason armours that was equipped (helmet, leggings, chestplate, and boots) were still persist, maybe because the game think that equiped item count as an interaction
Still persist in 1.16.0.2 and latest beta 1.16.20.50