The Ubuntu Unity 22.10 has now been released, and is the first stable release of Ubuntu Unity as an official flavor! You can download it from https://ubuntuunity.org/download/.

" It introduces a new toggle from the panel to switch between the dark and light theme, and between accent colors. It also replaces all the libadwaita apps with MATE alternatives. The ISO’s much smaller, at 2.8 GBs. The RAM usage has also gone down significantly (around 650MBs when idle). "