I just learned to install League of Legends in Ubuntu, and there are several problems.
First, the update takes a long time, which could be attributed to my net work. Anyway, it can be done after spending a long time, so this is not a real problem.
Second, there is problem of the in-game store (the game crash everytime I try buy items). To solve this problem, I followed https://wiki.archlinux.org/index.php/League_of_Legends. However, when I use the LoL-Linux-Tools to execute the Texture Patch, it works for a while, but if I relaunch the Client, it says something about "detect possible data corruption" then I have to update the patch (I believe what it did is to erase the changes done by the LoL-Linux-Tools). As a result, the in-game store is not working again.
As suggested by the website, I also "edit the .../Config/Game.cfg and under the [General] section add "x3d_platform=1"". And what I got is a functional in-game store, with "blurry textures".
Do I need to wait for the latest version of LOL available in the "PlayOnLinux"?