one command to install Nativefier, create desktop app for any web site also make shortcut icon for you [tested on Pop!_OS]

web2app

#!/bin/bash

if ! command -v node &> /dev/null
then
    echo "nodejs could not be found"
    sudo apt install -y nodejs
fi

if ! command -v npm &> /dev/null
then
    echo "npm could not be found"
    sudo apt install -y npm
fi


if ! command -v nativefier &> /dev/null
then
    echo "nativefier could not be found"
    sudo npm install -g nativefier
fi

TARGET_PATH=~/.local/share/nativefier
mkdir -p $TARGET_PATH
SHORTCUT_TARGET_PATH=~/.local/share/applications
mkdir -p $SHORTCUT_TARGET_PATH

ARGS_NATIVEFIER=$@

while test $# -gt 0
do
    case "$1" in
        -*) PARAM="$1"
            ;;
        *) if [ "$PARAM" = "-n" ] || [ "$PARAM" = "--name" ]
           then
              APP_NAME=$1
              unset PARAM
           else
             APP_URL=$1
           fi
            ;;
    esac
    shift
done

if [ -z "$APP_NAME" ]
then
  >&2 echo "Please provide -n or --name argument for the application name."
  exit 2
fi

regex='(https?://)[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]'
if [[ ! $APP_URL =~ $regex ]]
then
    echo "Web Link not valid"
    exit 0
fi

nativefier -p linux --tray -a x64 ${ARGS_NATIVEFIER} ${TARGET_PATH}

SHORTCUT_TARGET_PATH_FULL="${SHORTCUT_TARGET_PATH}/nativefier.web.${APP_NAME// /}.desktop"
echo "App built shortcut to ${SHORTCUT_TARGET_PATH_FULL}"
cat > "$SHORTCUT_TARGET_PATH_FULL" <<- EOM
[Desktop Entry]
Type=Application
Name=${APP_NAME}
Icon=${TARGET_PATH}/${APP_NAME}-linux-x64/resources/app/icon.png
Exec=${TARGET_PATH}/${APP_NAME}-linux-x64/${APP_NAME// /}
Categories=Network
EOM

web2app.md

Installation

sudo curl https://gist.githubusercontent.com/aarestu/a8f8db3c50dc4ba5c9a64a5abc9a7623/raw/web2app -o /usr/bin/web2app && sudo chmod +x /usr/bin/web2app

Usage

$ web2app -n Whatsapp https://web.whatsapp.com/ 

Hey man, how do you uninstall the desktop app which is created?

Hey man, how do you uninstall the desktop app which is created?

@MercMayhem you can remove directory under
~/.local/share/nativefier
and remove icon in:
~/.local/share/applications