Dynamic weather is good but they should have an option to turn it off. It may cause FPS drops for some people.
I like my surroundings to be clear though and to see clearly within the game, so I'm not keen on this one.
I think over the period of time they have managed to improve a lot on this. And this would be a key in near future on that note.
PUBG lite on PC is out so yeah lot of graphics wise things have changed too. It's fun though to see change of weather and other updates.