alt+f4 or press X in the corner and hit exit.

some barnacle head is claiming you have to back to menu, change summoner, go to main menu, and hit exit game to "properly exit the game", this is stupid and wrong, data is synced server side, so if you kill a mob and alt f4 instantly, your data isn't gonna get corrupted, you aren't gonna break your character or any of that other nonsense. This would only apply if data was saved/synced client side, as in for example, you're playing a single player game and it says "saving do not turn off the power" and you turn off the power - you ARE gonna possibly lose progress and mess up your files, because it's being SAVED/SYNCED CLIENT SIDE, NOT SERVER.

I've been playing sw arena for over 5+ years, always swipe it away from recents, no data corrupted, no nuclear war, because it's all saved server side, same as swc, i've been playing a month and never had any "data corruption" or save issues like some fools are claiming.

Server side - saves are stored inside the server itself; you can't break anything by force closing the game, and even if you somehow "corrupt your files" from doing this, simply reverify files, but it's never happened to me.

client side - saves are stored on your local machine/storage device; as i said in my example, single player games that save the data to your storage and or client, can and may get hit by corruption if you force close it while saving etc, because when you close the game/machine, you kill the info being written to the storage abruptly, while it's being written. Killing your client on a server-sided game, doesn't stop the server from saving/syncing your progress.

can't believe i have to explain this lol