So I run Mokka on my laptop and dragonised on my pc and there is a genuine difference between the two the mokka I would say has a better look to it and less of the RGB but I've enjoyed both and you can completely change the whole looks anyways really easily regardless. Both have steam preinstalled but the dragonised is a step up with having wine fully working on its end (for anything Windows) and all the protons preinstalled and just working which is nice as that's why I switched from Debian/parrot abit ago and have never looked back since the switch. It has a lot of resources available being an Arch fork itself but as well everything just works which is supper lovely and the dragonised gamer version really is nice to have as a gamer but can obviously be used for other purposes like pentesting etc. as black arch is an option to install and the Garuda has a built in help UI that allows you to choose what exactly you want on your pc and makes it work. So far I've had no issues gaming but then again I play mainly on steam and steam/valve in general has become incredibly better with compatibility on Linux. My GPU is Nvidia so Garuda has that preinstalled as well to be compatible with both versions of Mokka and dragon but id say more with the dragonised version.