I have just installed Opera Mini 14 on my new iPad. Whenever I play a (YouTube) video in the browser I am unable to make this full screen. I simply see the message "Your browser doesn't support full screen". I have checked most of the stated possible causes without success. Is it the case that this functionality (or lack of it) is by design?
NB: After many years as a loyal user of Chrome I am in the process of changing all my browsers to Opera, if only for the very effective inbuilt Ad Blocker.