Do Battle Royale item spawns rely on location?

I encountered somebody in voice chat who was talking about how different areas were good or bad for loot, so I wondered if there was any truth to that.

It seems that the loot chests randomly spawn in a set of predetermined spots and that there is a degree of randomness to what loot spawns in exact locations, but general areas seem to tend more towards specific items. For example, I seem to be able to reliably find a shotgun in the prison, not always in the exact same spot, but in another area different types of weapons might be more abundant. Additionally, I'll find that certain areas seem more likely to spawn more chests.

Am I just noticing coincidences, or is there any evidence that some areas tend to have different kinds of loot? If so, what are the patterns?

Items will always spawn in the same spots. They have a chance to spawn and they will be random every time.