The most direct solution was to let the players touch the screen, but even though this plan seemed perfect, the hand feel of the operation was terrible. The main problem was that it was tiring and inaccurate.
If it was on a tablet, it would be more friendly for the player to tap on the screen with his hand. However, after all, most people played games on their mobile phones. Who would have nothing better to do than to run around with a tablet?
Moreover, it was very tiring to point because players had to frequently farm and attack in the game, and they also had to move.
On the PC side, players could easily complete these actions with the mouse, but on the mobile platform, just relying on the mouse would make it seem like they were in a mess.
On the other hand, it was the rhythm of the game. In League of Legends, normal matches were around 30 minutes long, but some could be delayed to 50 minutes or even longer.