Laptop fan started running continuously, removed the application.
Refer: https://fossbytes.com/things-to-do-after-installing-ubuntu/
TLP is a great command-line tool for improving the battery performance for your laptop after installing Ubuntu 20.04 LTS. This advanced power management tool comes with automated background tasks that can help you get the most out of your battery.
To install TLP in Ubuntu 20.04 Focal Fossa,
sudo add-apt-repository ppa:linrunner/tlp sudo apt-get update sudo apt-get install tlp tlp-rdw sudo tlp start