I have a Pi 4B (4GB) on which I want to install Ubuntu 20.04.2 Desktop.
The Raspberry Pi Imager gives me the opportunity to only install Ubuntu 20.10 Desktop or 20.04 Server. Older versions of the Imager also don't have the option to install 20.04 Desktop.
On the Ubuntu website they don't offer a downloadable .img of 20.04 Desktop, so I can't load my own image file to install via the Imager.
When trying to create a bootable SD card with Rufus, I can choose the 20.04 Desktop arm64 .iso fond here. The imaging process only takes about a minute before telling me it's finished, which feels way to fast. When trying to boot the Pi from that SD card it can't find anything on there and tries to find another source, which it doesn't.