I am unable to go to how screen from some Apps. Doesn't matter how many times i swipe up on navigation bar. This has been happening recently.I am on S20+ Exynos

Pubg mobile lags on my S20+. It lags every 2 - 3 seconds which makes the game alomost unplayable. I paid so much money for this phone why cant it run the most popular game on playstore. My 2016 iphone 7 used to run this game like a champ.Exynos 990 i...