A further exploration of the  apt command.

Before there was apt there was the apt-get command.

There is also Synaptic Package Manager.

sudo apt purge

sudo apt show

sudo apt list

sudo apt list --installed

sudo apt list --upgradeable

Remember,if you are either disabled or elderly you can ring AbiltyNet, a UKcharity, who can make visits to your home, if necessary, or ring you to help you.  Their free-phone telephone number is 0800 048 7642.  Their email address is [email protected]and their web address is www.abilitynet.org.uk.  And it is all free-of-charge!

You may also find in the area where you live a friendly computer club with people who are willing to help – talk to your local council.