Linux Shout published a tutorial about installing Ulauncher in Ubuntu 20.04 LTS linux.
How to install Ulauncher in Ubuntu 20.04 LTS linux
Get MacOS Spotlight alternative Ulauncher application finder installed on your Ubuntu 20.04 or 18.04 LTS linux system using commands.
How to install Ulauncher in Ubuntu 20.04 LTS linux - Linux Shout