How to Make Ubuntu 20.04 LTS VMs Smoother by Enabling 3D Acceleration on VirtualBox

With the release of Ubuntu 20.04 LTS (Focal Fossa) last month, Oracle has recently highlighted one of the features included in the latest VirtualBox 6.1 open-source virtualization software to make your Ubuntu virtual machines faster and smoother. Since I can’t have several computers around me installed with every GNU/Linux distribution I write about, nor a computer with multiple distros installed, I use virtual machines a lot and VirtualBox has become my best friend lately.