I thik both are nearly dead UNA and Dolphin - but up to the year 2023 a lot of thinks can happen.
Dolphin is more comfortable als a real CMS - i like it. Una is overloaded and when it comes to the administraton it is unpracticable.
UNA has so much more potential im sorry it did not work out for you dude but UNA is what boonex are focusing on now they will still support dolphin but there is only so much a system like dolphin can do or places it can go i like dolphin as well the only thing that was keeping me there was the modules so meany modules but una had what i needed more that 1000s of modules
anyways peace out dude all the best i hope it works out for you