Converting Swap partition to Swap file
Since a couple of years ago, Linux distributions use a swap file (to exchange with Ram memory when it is exhausted or to hibernate the system) instead of a swap partition. If, like I do, instead of clean installing version upgrading is used, it is possible that the system still uses the swap partition.
Conky is a program that shows information at the computer desktop, like weather or system information. With version 1.11.6, which is the version that comes with Ubuntu 20.10, the configuration script has changed its format to lua. This makes all conky with the old configuration unusable.
Since many years ago, I use "rsync" to make snapshots of my system and keep backups which are separated from the main system.