Swipe gestures to switch between portrait and landscape mode working for youtube only when the screen is not zoomed to fill the entire screen, if the screen is zommed to fill the whole screen, then swipe gestures are not working, need to use the navigations to switch then.
Please perform the below mentioned steps to resolve the issue:
* Check app cache: Clear cache memory of a particular application : Setting >Apps >Now pick the app. For example 'Samsung Internet' >Storage >Clear Cache.
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