There isn’t a set value. You can see sources below.

Georgia: https://dds.georgia.gov/section-5-continued-keep-right-except-pass

National: https://www.nhtsa.gov/sites/nhtsa.gov/files/summary_state_speed_laws_12th_edition_811769.pdf

If something is too weird, some of the oddities tend to get overlooked.

Install Wayland and KDE support then switch on the login screen

pacman -Sy plasma-wayland-session

You can test Wayland support in x11 with

startplasma-wayland dolphin