After game chat - report?

So i had this game with a really toxic . It got worse after the game was over. Now they have the report button right there, but as far as I know, this only includes the chat from the game, not the chat log from the lobby before and after the game, correct?

Anyways, this proceeded to wish death upon me, told me to slice my wrists, and bleed out, while (s)he wanted to watch me die. I screenshotted it, submitted a ticket and attached the after game chat log and image to a manual player report by sending in a ticket. Thinking this will either take forever to be seen by Riot, or even ignored, I moved on. 10h later I get an email thanking me for the report, and for pointing out such bad player behavior. The email stated due to privacy regulations they won't be able to let me know if that player got punished. But I'm sure this got served justice. Riot wouldn't make the effort in replying to me with an email with over 100 lines of text, and then ignoring that player.

In the email it also said that the in-client report feature is a better and faster way to report people. I agree that it's faster (I've gotten over 10 notifications this season alone that my report triggered a punishment on a player) , but does that kind of report even include after-game chat? If not, I guess manual reports by tickets are the only way to do that, right?