I remember using the Enlightenment desktop many years ago. It was beautiful, highly flexible, and fun. Since then, Enlightenment has been mostly relegated to the shadows by way of niche distributions including Bodhi Linux, which forked Enlightenment and named it Moksha.

Moksha is a concept in various Indian religions, particularly Hinduism; it means emancipation or liberation from the cycle of death and rebirth. When the Bodhi developers decided to fork Enlightenment, the name seemed appropriate.

For years, Bodhi was one of the very few distributions that used anything based on Enlightenment. That period of loneliness is officially over, with MX Moksha and AV Linux 25.

MX Moksha doesn't replace the original MX Linux. Instead, it will serve as an "official spin" of the distribution. There is one caveat for MX Moksha: systemd. The Enlightenment desktop (and subsequently Moksha) was developed with systemd in mind, so MX Moksha uses systemd. If you're not a fan of systemd, MX Moksha is not for you. MX Moksha is lighter than MX Linux, so it will perform better on older machines. It also uses the Liquorix kernel for lower latency.

AV Linux has been released with the Xfce and LXDE desktops at different times and has only recently opted to make the switch to Enlightenment. AV Linux isn't going the Moksha route; instead, it is opting for the original Enlightenment.

Read more about both on the official maintainer's blog (yes, they are both maintained by the same person).