I've seen a lot of ppl confused with prime gaming loot for PUBg, therefore here is a list of when the drops are supposed to drop. I hope it helps :)
Free exotic Destiny 2 weapons, items available through Twitch Prime rewards program - Destiny Tracker
PUBG' Gets New 10-Man War Event Mode This Weekend
PLAYERUNKNOWN'S BATTLEGROUNDS - PlayStation 4 : Sony Interactive Entertai: Video Games
Worlds 2022: All You Need to Know About Reward Capsules & Drops
Best battle royale games on PC 2023
PUBG' Jungle Crate Twitch Prime Loot Live - Items & How to Get It
LoL Prime Gaming - Loot, rewards, and much more
HOW TO GET NEW PUBG PRIME GAMING LOOT FOR MAY 2023
Twitch Prime's December offerings include League of Legends, PUBG Mobile, Magic Arena, and more - GameRevolution
PUBG Erangel map and the best places to drop in for loot
How to claim new Warzone & CoD Vanguard Prime Gaming rewards - Dexerto