LXQt desktop environment
LXQt is an advanced, easy-to-use, and fast desktop environment based on Qt technologies. It has been tailored for users who value simplicity, speed, and an intuitive interface. Unlike most desktop environments, LXQt also works fine with less powerful machines.
This is the unofficial snap packaging.
Upstream: https://github.com/lxqt/lxqt
Make sure a window-manager (eg. Xfwm4, Openbox, Kwin, Compiz, ...) is installed.