Question: things to do after installing debian buster?
Answer: 1) Install and Configure sudo.
2) Fix Date and time.
3) Apply all updates.
4) Tweak Desktop Settings using Tweak tool.
5) Install Software like VLC, SKYPE, FileZilla and Screenshot tool.
6) Enable and Start Firewall.
7) Install Virtualization Software (VirtualBox)
8) Install latest AMD Drivers.