A poorly made script that I've made to facilitate users to use wayland w/o nvidia-drm (disable external monitor) or wayland w/ nvidia-drm (enables external monitor) for Optimus MUXed laptops. This will affect rebootless mode via supergfxctl.

emswitch.sh

#!/bin/bash

# vars for getopt
LONGOPTS=mode,status,help
OPTIONS=m:sh

# use getopt to parse argument idk
! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
    exit 2
fi

eval set -- "$PARSED"

mode=- s=n h=n
while true; do
    case "$1" in
        -m|--mode)
            mode="$2"
            shift 2
            break
            ;;
        -s|--status)
            s=y
            shift
            break
            ;;
        -h|--help)
            h=y
            shift
            break
            ;;
        --)
            shift
            break
            ;;
        *)
            echo "Programming error"
            exit 3
            ;;
    esac
done

# handle non-option arguments
if [[ $# -eq 0 ]]; then
    echo echo "$0: Invalid argument. See -h or --help"
    exit 4
fi

# check if the user are in hybrid mode
function check_hybrid {
    gfxstatus=$(supergfxctl -g)
    if [ $gfxstatus != "hybrid" ] ; then
        echo "You need to switch to hybrid first before running this tool"
        exit
    fi
}

# check if the file exists, therefor capable of the use of external monitor
function check_status {
    file="/usr/share/glvnd/egl_vendor.d/10_nvidia.json"
    if [ -e $file ] ; then
        echo "Your machine IS external monitor capable."
        return 1
    else
        echo "Your machine IS NOT external monitor capable."
        return 0
    fi
}

# check if user has sudo this script
function check_admin {
    if [ "$EUID" -ne 0 ]
        then echo "$0: Run this tool as root first."
        exit 4
    fi
    check_hybrid
}

# create NVIDIA JSON file that points to libEGL
function create_json {
cat > /usr/share/glvnd/egl_vendor.d/10_nvidia.json << EOF
{
    "file_format_version" : "1.0.0",
    "ICD" : {
        "library_path" : "libEGL_nvidia.so.0"
    }
}
EOF
}

# create config for RTD3
function create_config {
cat > /etc/modprobe.d/nvidia.conf << EOF
options nvidia "NVreg_DynamicPowerManagement=0x02"
EOF
}

# don't want to ask again
# this file will be located under /root 
function dont_ask {
    touch ~/.dont_ask
}

# enable/disable wayland even if nvidia-drm.modeset=0
function wayland_rules {
    if [ $1 = "enable" ] ; then
        # remove a comment line if any to ATTR{parameters/modeset}, so user will forced to use Xorg
        sed -i "/parameters/s/^#//g" /usr/lib/udev/rules.d/61-gdm.rules
    elif [ $1 = "disable" ] ; then
        # add comment line to ATTR{parameters/modeset} to enable choose wayland
        sed -i "/parameters/s/^/#/" /usr/lib/udev/rules.d/61-gdm.rules
    else
        echo "Programming error"
        exit 3
    fi
}

# update NVIDIA modeset via grub2
function config_grub {
    if [ $1 = "enable" ] ; then
        sed -i 's/nvidia-drm.modeset=0/nvidia-drm.modeset=1/g' /etc/default/grub
    elif [ $1 = "disable" ] ; then
        sed -i 's/nvidia-drm.modeset=1/nvidia-drm.modeset=0/g' /etc/default/grub
    else
        echo "Programming error"
        exit 3
    fi
    $(grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg)
}

# Enable RTD3 if haven't
function enable_rtd {
    rtdfile="/etc/modprobe.d/nvidia.conf"
    whoask="~/.dont_ask"
    if [ ! -f $rtdfile ] && [ ! -f $whoask ]  ; then
        echo "This option applies only for Geforce 16+ Series for power save when using hybrid mode."
        echo "Do you want to enable RTD3 Power Management? [y/N]"
        read input
        if [ $input = "y" ] || [ $input = "Y" ] ; then
            create_config
        fi
        dont_ask
    fi
}

# help manual
function help_tool {
    echo "This tool enables or disable use of external monitor. Disable external monitor will enable rootless mode for supergfxctl."
    echo
    echo "Valid arguments:"
    echo -e "-h, --help\tSee help message"
    echo -e "-m, --mode\tSet emswitch mode. Valid modes are: enable, disable"
    echo -e "-s, --status\tSee emswitch status"
    echo
    echo "Make sure to switch to hybrid mode before using this tool."
}

if [ $h = y ] ; then
    help_tool
    exit
fi

if [ $s = y ] ; then
    check_status
    exit
fi

if [ $mode = "enable" ] ; then
    check_status
    if [ $? = 1 ] ; then
        echo "The mode is already enabled. Exiting..."
        exit 2
    fi
    check_admin
    create_json
    wayland_rules $mode
    config_grub $mode
elif [ $mode = "disable" ] ; then
    check_status
    if [ $? = 0 ] ; then
        echo "The mode is already disabled. Exiting..."
        exit 2
    fi
    check_admin
    enable_rtd
    # remove NVIDIA json to disable libEGL library
    rm /usr/share/glvnd/egl_vendor.d/10_nvidia.json
    wayland_rules $mode
    config_grub $mode
else
    echo "Invalid mode. Valid modes are: enable , disable"
    exit 2
fi

echo "Use of external monitor: " $mode
echo "System reboot required. Do you want to reboot now? [Y/n]"
read input
if [ $input = "n" ] || [ $input = "N" ] ; then
    exit
fi
# reboot the system
$(reboot now)