@Bronislaw666 the ability to compile UE with Dual Quaternion Skinning has been around since 4.1x. I have a custom build on my Git for 4.21 with Dual Q. You have to do a little digging, and understand how to compile from source, but this question has been answered for years.
It’s likely fairly painless to build a UE5 EA version with DQS with some time looking at merging the branches.
As @JW3153 said, Metahumans is the future. They’re well optimized and look much better than anything you can get going Daz to UE. Believe me, I’ve tried (see below).
@FrankieV seems to have a good workflow between UE & Daz. He can probably assist you if you have real questions around it.