awesomerc/configuration/rules/client/global.lua

local aclient = require "awful.client"
local aplacement = require "awful.placement"
local ascreen = require "awful.screen"

local global_rule = {
    id = "global",
    rule = {},
    properties = {
        focus = aclient.focus.filter,
        raise = true,
        screen = ascreen.preferred,
        placement = aplacement.no_overlap + aplacement.no_offscreen,
    },
}

return global_rule