Your fiduciary (power of attorney agent or executor) will likely not know you own crypto unless you tell him. Otherwise, your crypto investment may go to the grave with you.
Your fiduciary may not be able to legally access your crypto if you, and he, do not follow the Revised Uniform Fiduciary Access to Digital Assets Act. You must give your fiduciary written access to your digital assets. Even then, to access the assets, your fiduciary will have to provide, at a minimum, a written request, a copy of your will, trust or power of attorney, and information that links the digital account to you.
See the full story here: https://www.dallasnews.com/sponsored/2021/07/25/when-virtual-becomes-reality-cryptocurrency-comes-riding-into-texas/