Is Power IK the best full body IK solution? does it include finger IK?

is Power IK the best full body IK solution? does it include finger IK?
how to set the position and rotation of the 3-point in its 3-point VR Tracking demo.

does this charactor in 3-point VR Tracking demo support Physical Animation or even Ragdoll.

just use Power IK is enough for Foot IK, hand and Finger IK, grab various weaponss, climb wall?

Hello greetings from Uruguay I have problems downloading the power ik plugin for unreal 4.26 could you help me install epic launcher but I cannot download the plugin because it does not recognize the previous installations of the unreal engine