Our team has been using Genesis 3 since about 4.5 or so as that is about the time G3 was made available. First iterations via the FBX exporter was bad as to requiring work arounds but has continued to be improved over time both on Epics side of the fence as well as Daz3D so as a usable tool it’s not going away any time soon but can be assumed will continue to improve.
To consider.
Since 4.25 the first iteration of the Daz > Ue4 bridge was introduced as well as Daz3D making a bridge version available for most popular 3d application.
In 4.26 there is a marked noticeable improvement based on feature improvements directed towards that application version.
Daz3D has released the base plugin code to open sourced so is open to anyone wishing to make improvements in a similar manner as the Unreal 4 engine source being made available via git.
Daz3D was presented with an Epic Grant to continue improvement of the UE4>UE5 bridge as an on going effort.
Genesis 3 and 8 are officially supported in the Unreal 4 engine via the Daz to UE4 bridge and plugin that includes the necessary tools as well as project settings as to custom project requirements like materials.
Here is a current example of quality of asset.
