Type in a terminal
sudo -H gedit /usr/share/applications/whatsapp-webapp.desktopCopy following text to opened screen
#!/usr/bin/env xdg-open[Desktop Entry]Name=WhatsAppGenericName=WhatsAppComment=WhatsApp desktop webapp#Exec=webapp-container --store-session-cookies --webappUrlPatterns=https?://*.whatsapp.com/* --user-agent-string='Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36 Edg/85.0.564.44' https://web.whatsapp.com %uExec=/opt/google/chrome/google-chrome --app=https://web.whatsapp.com/Terminal=falseType=ApplicationStartupNotify=trueMimeType=text/plain;# If you want icon, type path of icon# Icon=Categories=Network;Application;Keywords=WhatsApp;webapp;X-Ubuntu-Gettext-Domain=WhatsAppStartupWMClass=web.whatsapp.comtype whatsapp in the dash and start the programm, and connect it to your whatsapp on your telephone. You can make the whatsapp icon favourite in your dash for easy starting.
Telegram
there are 4 ways to install telegram:
sudo snap install telegram-desktopsudo add-apt-repository ppa:atareao/telegramsudo apt update && sudo apt install telegram4. Install Telegram from flatpak: https://flathub.org/apps/details/org.telegram.desktop
Signal
# NOTE: These instructions only work for 64 bit Debian-based# Linux distributions such as Ubuntu, Mint etc.# 1. Install our official public software signing keysudo apt updatewget -O- https://updates.signal.org/desktop/apt/keys.asc |\ sudo apt-key add -# 2. Add our repository to your list of repositoriesecho "deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main" |\ sudo tee -a /etc/apt/sources.list.d/signal-xenial.list# 3. Update your package database and install signalsudo apt update && sudo apt install signal-desktop