Easy or not depends vary wildly. But the usual task is
partition the drive
format the drive
mount the drive
install the base system
That is the bare minimum, but we need to do more configuration to be able to boot. Hence the next task is configuring the following
fstab
timezone, hostname, and networking
boot loader (I just use the EFI directly nowadays)
That is it. Everything else is usually work specific. Like, if you wanted arch to be a server, you usually didn’t install a GUI. For workstation and gaming, you need more steps but it will vary depending on hardware. The archwiki covers a good deal of hardware from laptop to desktop and their quirks.