Hey @user8A6YDXqrnm Most likely Android 11 will be pushed out when it's ready for a consumer release on handsets. So i would guess between late this year and early next year depending on your carrier, region and device.
The beta version usually isn't pushed out, you would have to search for it and install it on your device. Only final versions are pushed out once they've been tested.
It depends on if it is even valuable to the consumer. It might actually do too many bad things than good things. Android Oreo for example was entirely fruitless. It brought no new anything. As long as everything is working properly on your phone and all the apps are compatible you'll most likely gain nothing.