MSI Creator's keyboard backlight doesn't work

I am a newbie at linux and I have installed Fedora 38 KDE on my laptop. It's turned out that backlight of my built-in keyboard is off although in Windows I can switch it on and off by Fn+F8. Of course I tried pressing Fn+F8). Also I opened Settings/Shortcuts and tried to assign Fn+F8 to something. And when I pressed the combination nothing happened as if Linux didn't hear this combination at all. When laptop starts the backlight is on and it switches off when GRUB menu appears. I tries to use OpenRGB but is says "One or more I2C/SMBus interfaces failed to initialize." Unfortunately, I don't know what I2C is and how it relates to keyboard backlight. lsusb shows:

Bus 003 Device 006: ID 1038:113a SteelSeries ApS SteelSeries KLC

**Update** I found the information that has helped me to solve the problem. But I don't understand how it works. I'll appreciate if you explain me)