What exactly is UserKernel?

Watching active applications while I'm playing league, this is something always open. It's also (Not Responding). Quitting the process doesn't seem to affect anything. There are also multiple "LoLPatcherUx"'s running. What do these processes relate to?

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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