Comments about various types of POA often come up in our posts here.
It is important to remember that this forum has people from many different countries and various jurisdictions within those countries.
POAs can come into effect immediately or need to be triggered by an event, incapacity due to mental infirmity, or physical injury. Some are for a short term duration, I assigned my cousin POA over my pets when I was out of the country for a period of time. She was not providing care, but was the emergency contact for them. I trusted her implicitly to make the right decision.
A POA can be enacted in a limited capacity in some places. My brother is our father's POA for everything, but only has enacted it to take care of taxes. Dad is competent in other areas of his life.
I work for a Financial Planning firm and all POA documents have to go through our legal department before we can accept instructions from the POA.
My POAs over Mum allows me to place her in a care facility, if she is no longer safe at home. She can kick up a fuss, but I can legally place her, if she is no longer mentally competent. Now someone else's POA over their parent may not have this written into the document or it may not be legal in the jurisdiction
We need to keep this in mind when we give advice. I know I forget at times that different laws apply in different places.
My last comment, please have the documents drawn up by a lawyer in the jurisdiction where it will be used. They will know which laws apply, what a POA can and cannot do.
Where I work, a POA that was not drafted by a lawyer will undergo far greater scrutiny and may not be accepted at all.