PUBG is comfortably my GOTY so far.
There's something pure in its roughness and simplicity at its current, imperfect stage. There is a steep learning curve, but after some hours in you're aware of the ins and outs of this huge map: how to position yourself in gunfights, start accounting for bullet drop, know where vehicles may spawn, start planning ahead on where to move in the zone by taking the plane's original trajectory in consideration, etc etc.
Every match plays out differently and forces you to adapt in different situations. One match you may be swimming across the map to the island where the zone is moving in, and start getting shot from the bridge and need to stay underwater, and hope you can stay alive. The other match you may be sniping on a hill fully decked out using the zone to your advantage. Another match you may not find a car and need to run across fields to barely reach the zone, and next thing you know, with almost no loot, you find yourself in the last few encounters and barely scrape by with the last kill. And even if there is no real tangible reward in the end, you take pride in getting through all those messy fights and close escapes to get that chicken dinner screen on your own merits. My favorite moments don't even come from matches where I win, or even come close, they come from pulling off stupid hijinks with friends, or clutch plays when you're alone in your squad, or smacking someone across the head with a pan at the start of a match while they're still reloading their shotgun. I think almost anyone can find some fun in PUBG, and you don't have to particularly be good at it.