What is kwin_wayland_wr? Also do you really have 6 GiB RAM installed? If not you may be able to reclaim some of it via UEFI if the RAM is assigned to iGPU.
As I found out recently myself, you should almost always set the minimum amount of reserved memory for the iGPU on modern hardware. The reserved memory is just that— reserved. The kernel still dynamically allocates memory for GPU usage as needed on iGPUs.
Well I can argue with that because Linux systems usually consume more energy than identical systems with other operating systems though they are probably less green due to having a lot of cloud and ad related tech built in.
That's not ture atleast on my system, I played modded Minecraft for 4 hours on performance mode and I still have 15% to spare, I also watch BCS for an season and it's only drain 60% on power saving mode
Sure. git is a command used for programming, much more likely in the future you will use less, which allows you to view/scroll through/paginate text files.
To be honest, the intro of manual pages are really good at explaining commands: man less