I heard there are many restrictions to use VPN in UAE but is it legal to use VPN to play games on other servers of the games? (BGMI, Valorant), and even if I have a vpn subscription like ExpressVPN, any idea on how the network quality will be?
I have been using it for more than 2 years now , as long as you don’t do any shady activities 
With or without a VPN, if playing on servers far away then your connection will be poor relative to your geographical location. Doesn’t make much of a difference. I play world of warcraft on oceanic servers, my ping is basically the same with VPN on or off
I’ve heard exit lag can help slightly with better routing, but I haven’t tried it
I use a VPN to watch US Netflix and Hulu and have never had an issue, though I imaging connection speeds would suck for gaming.
Having and using a VPN is not illegal, however using a VPN to access contents or systems prohibited in UAE law is.
I just use my vpn to play jjk:phantom clash
You can but you’ll get higher ping. You’re still physically far from wherever you’re trying to play in Valorant for example.
VPN usage is not allowed to break the law, playing non restricted games with VPN should be totally legal
EDIT: my comment is exactly the same as “the most liked” - can someone explain downvoting?
you can but it will not really give you better latency.
If you’re referring to exitlag, it’s totally fine . Using vpn is fine as long as you do use it for anything illegal anyways Even vpns in UAE are heavily monitored.
Try using exitlag.