Joplin
Desktop Notes as Markdown and Sync via Dropbox or OneDrive
wget -O - https://raw.githubusercontent.com/laurent22/joplin/dev/Joplin_install_and_update.sh | bash
Experiencing issues with that lib? Check this out for Ubuntu users at least.
ONLYOFFICE
OnlyOffice Desktop (all distros)
Debian-based Distros : apt
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys CB2DE8E5
echo "deb https://download.onlyoffice.com/repo/debian squeeze main" | sudo tee /etc/apt/sources.list.d/onlyoffice.list
sudo apt update
sudo apt install onlyoffice-desktopeditors