It may depends on your state.
In the State of California where I am from, California issue what is call "Probate Code". Here is an example of a link to the California Probate Code:
https://california.public.law/codes/ca_prob_code_section_6400
Your state should have something similar and the probate should be online for the public to understand your state's probate code.
My Dad passed away first so the assets went to my Mom. When my Mom passed away, my brothers and I discovered that our Mom consulted an attorney who set up a "poor man's living trust for our Mom.
The title to her house was made in the oldest brother's name as an "Enhanced Life Estate Deed" which is called a Lady Bird Deed. Her savings/checking/IRA accounts were designated a "POD" or payable upon death accounts with a specific beneficiary.
Before we distributed the assets without probate, we hired an estate attorney for one hour consultation. The attorney stated that all of my Mom's assets should be outside Probate according to California law and because there were a named beneficiary.
However, the attorney stated something interesting: He asked: Is there a possibility of a dispute within the family which we stated "no". The attorney explained that "anything can be disputed" and usually this happens when the estate is a very large one or the survivors do not get along very well.
The attorney also stated another interest point: The survivors must publish a "death announcement" of the deceased in the newspaper to start the clock for any claims against the estate. After expiration, Probate court will disregard any claims against the estate.
In any case, i suggest that you look up the probate code in your state especially if the estate is a large one or if there is a potential for a dispute within the family. Never assume anything unless you read the probate code with your own eyes or consult an attorney. Also, some counties provide "free consultation" of a county estate attorney for the public on estate matters. I would look at the homepage of your county to determine if this free service is available to you.