Not all Android devices have this toggle. I personally own three Android devices (and have one Android device from work) and none of them have this option. Righ

Not all Android devices have this toggle. I personally own three Android devices (and have one Android device from work) and none of them have this option. Right now I can see both a Samsung S21 and Samsung A73 provide only the following: 5G/4G/3G/2G; 4G/3G/2G; 3G/2G; 3G only; 2G only. Some people have said it depends on the network operator--however I have access to 4 different phones attached to all three network operators in my country and the options are the same across all three (including the two operators who have no 2G network whatsoever making it even more silly Android insists on keeping 2G enabled if you only want 4G/5G).