crashed

stats: i5 8250U geforce mx150 (plus intel UHD 620) 8 GB memory

Everything froze up in the loading screen (where you see all the champions like cards and everything) I couldn't even alt tab, and when I pressed ctrl alt del to open the task manager the task manager was hidden beneath the game and I couldn't access it.

I had to turn off my computer and by the time I got back it was 6 mins in the game.

League is going to be working on a literal phone soon I don't see any excuse for why it crashed my pc.