To be honest I was thinking about LXQT for the live session too already… But it will be not less work from maintaining compared to xfce4, what is also a point on changing if not the main one…
EndeavourOS is not about personal opinionated theming and set up.
Our goal is a simple to install arch based Desktop for general usage, that follows the KISS principle on the way it is set up and handled from development and maintaining…
The main thing to make it stable and easy to use and handle.
The xfce4 setup is highly modified from the default upstream setup also it is indeed using on board tools and configs nothing that is specialized do deeply, that you can not change it to your personal needs anymore…
XFCE4 is stable as hell, or better say it was as the current state is in change not clear if it will change fully to gtk4 // libadwaita, or how long it will take to get there…
Wayland? May one day but we do not know.
LXQT is a nice simple and good on low-end hardware indeed, but it is not easy to maintain and will change a lot in the future too.
Offline install is not what we do recommend as the default way to install a rolling release and so also not recommended using as the default way to install EndeavourOS it was and is only a fallback option to be used in case of slow internet or other special needs.
If someone has a low-end system one can still have stable internet and use online to install another Desktop or WM. if both is true (bad network bad hardware) will need to be real old hardware to not be able to start KDE … And in addition… It is not hard to build the ISO with any other DE or even WM … We have a very stable and easy to use ISO framework…
If there is really the need for another offline it could be some people go maintaining such ISO or i will do that… Indeed, my heart say contribute dear community join us and be part of the development and maintaining for EndeavourOS but…
Hard to get people in 