If you want to install a package on a Fedora Linux, you might have tried a command like
sudo apt install [package name]
However, the Fedora distribution does not use the apt package manager. Fedora uses yum instead.
Use
sudo yum install [package name]
to install a package, for example
sudo yum install sqlite
Note: yum update does not do the same as apt update (i.e. update the list of available packages) but is the equivalent to apt upgrade or apt dist-upgrade i.e. update packages on the system!