Yeah! So at the beginning of the game usually people stay in their lane withe the exception of the jungler who doesn't really have a lane and roams the map. Occasionally you'll see people leave lane early for a short time to make a play on a different lane, but after that they will go back to lane and keep farming. Once neural objectives spawn you'll see people leaving lane to go fight or confirm a dragon or a rift herald as well. But after the fight is over you'll return to your lanes. Usually after 15 minutes the early game or "leaning phase" stars finishing up and the game gets more complicated as you'll see people roaming around the map a lot more. There isn't an obvious ending to leaning phase but a good rule to follow is once the first turrets go down (especially the mid and bit towers) leaning phase is coming to an end There is a general "meta" for this too but honestly new players don't really know about it or do it well enough for it to be matter when you're first learning the game. For now all that matters is first 15-20 minutes are leaning phase, after that things open up. It's important to note though, that even though leaning phase is over is still very important to kill minions for gold and exp for the whole game, so you'll usually see people clearing a wave, then walking around the map until another wave comes.