Weird Screen Flickering on ThinkPad T460s running Manjaro Gnome 20.2.1


I recently moved from Ubuntu to Manjaro Gnome 20.2.1 on my ThinkPad T460s. I absolutely love it, but soon realized a slight brightness flickering, whenever I move the mouse, open a window, type text in the terminal or an editor and the like. I made this short video to better show you the problem:

I never experienced this problem before on Ubuntu, so it is not a hardware issue. I also tried Manjaro KDE Plasma and it had the same problem (the video above is from that test). I don’t know what could cause this and would really appreciate your help. Thank you in advance!

Hardware Specs:

system         20FAS05P00 (LENOVO_MT_20FA_BU_Think_FM_ThinkPad T460s)
processor      Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz
memory         12GiB
memory         4GiB Chip Synchron 2133 MHz (0,5 ns)
memory         8GiB SODIMM Synchron 2133 MHz (0,5 ns)
memory         128KiB BIOS
bridge         Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers
display        Skylake GT2 [HD Graphics 520]
generic        Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
bus            Sunrise Point-LP USB 3.0 xHCI Controller