Hi muhammed ;-)
You can remove unwanted/duplicate packages with Synaptic package Manager
The NetInstall will propose you eitheir a command line installation or a
Text-based Installer(like Debian)
wiki |>
https://trisquel.info/fr/wiki/%EF%BB%BFinstallation-de-trisquel-netinstall-en-mode-texte
Noticing that the choice of Desktop Environment is either
(Gnome)?..(I am not sure seeing i have allways chosen Mini Environment)
or
LXDE(Mini)
http://trisquel.info/files/25_Trisquel_Netinstall.png
Another alternative is Uruk 1.0 which has Maté as default Desktop and is a
fork/respin of Trisquel
https://uruk.tuxfamily.org/dist/