updating can be necessary to get the latest fixes and drivers, you can do it using your system updater app or by using the terminal, which will i cover here
on debian/ubuntu, do:
sudo apt update && sudo apt upgrade
on fedora, do:
sudo dnf update && sudo dnf upgrade
on opensuse, do:
sudo zypper refresh && sudo zypper update
on arch based distros (manjaro, endeavour os, etc..) do:
sudo pacman -Syu
you might need to reboot, especially if it updates a core component such as a driver or the kernel