There are thousands of things to do, namely configuring all the software that you need to run on your computer. Of course, that varies depending on your use case and cannot be fully described here - check the respective sections on software configuration.
Also, there are hundreds of lists available in the internet, just use the appropriate google search:
https://www.google.com/search?q=things+to+do+after+ubuntu+20.04+installation
I liked these:
Besides that, there are a few things I always do:
sudo apt update && sudo apt upgradesudo apt install ubuntu-restricted-extrassudo apt install gnome-tweakssudo apt install gnome-shell-extensions sudo apt install chrome-gnome-shellls -l ~/.local/share/gnome-shell/extensions/Relevant/interesting gnome-extensions:
— Jonas Rathert 2021/11/23 21:09