GD Library extension not available with this PHP installation Ubuntu Nginx

The GD Graphics Library is for dynamically manipulating images.
For Ubuntu you should install it manually:

• PHP7.4: sudo apt-get install php7.4-gd
• PHP8.0: sudo apt-get install php8.0-gd
• PHP8.1: sudo apt-get install php8.1-gd

That’s all, you can verify that GD support loaded:

php -i | grep -i gd

Output should be like this:

GD Support => enabled
GD headers Version => 2.1.1-dev
gd.jpeg_ignore_warning => 0 => 0

and finally restart your apache:

sudo service apache2 restart