Gnome

Startup Applications

nano ~/.config/autostart/guake.desktop

[Desktop Entry]
 Type=Application
 Exec=/usr/bin/xflux -z 12345
 Hidden=false
 X-GNOME-Autostart-enabled=true
 Name[en_US]=xflux
 Name=xflux
 Comment[en_US]=Screen color temperature changer
 Comment=Screen color temperature changer

cat /etc/xdg/autostart/orca-autostart.desktop

Gnome Tweak Tool

sudo apt install gnome-tweaks -y

Show minimize, maximize and close buttons

top right

gsettings set org.gnome.desktop.wm.preferences button-layout ":minimize,maximize,close"

top left

gsettings set org.gnome.desktop.wm.preferences button-layout "close,minimize,maximize:"