Install eog-plugin-maximize-windows by entering the following commands in the terminal:
sudo apt update sudo apt install eog-plugin-maximize-windows
Description:
Maximize Windows plugin for GNOME Image Viewer
eog-plugins contain a set of plugins for eog, the GNOME Image Viewer. . This plugin maximizes GNOME Image Viewer windows by default.
Homepage: https://wiki.gnome.org/Apps/EyeOfGnome/Plugins
Version: 3.26.2-1
Section: universe/gnome