Dr. Strongly recommending palliative care for mom. What exactly can us kids expect as to how it works?

We were assigned a palliative care doctor towards the end of my MIL’s life. Took care of everything. Made it easier on us so we could focus on being with her. I didn’t even know it was a thing but the resources and help they provide was heaven sent. We wouldn’t have been able to get through everything without the help of the palliative care doctor. Best of luck to you and your family!

Palliative care is provided by a team of doctors, nurses and other specialists who work with your mom's primary care physician. It can provide personalized care plans, therapy, emotional and pastoral support. Palliative care does not require the patient have a limited lifetime like hospice care does. The care can be given at home, or in a facility. There may be a cost for the care so discuss it with the palliative care social worker.

I am including a link to WHO definition of Palliative Care. It is a specialty, and if you have access to it you are lucky. It amazed me when my bro went to Desert Regional Hospital in Palm Springs that, huge teaching institution that it is, it had no Palliative Care specialty. What made that even more interesting was that the resident directly caring for him had that as her specialty. It is relatively new, but not THAT new. Give a read of this World Health Organization overview and see then if you might have specific questions about Palliative Care.
WHO | WHO Definition of Palliative Care (you can google that)
https://www.who.int/cancer/palliative/definition/en/
Do know that Palliative Care is not solely for Cancer care, but does recognize that care is "end of life care", that there is no "treatment or testing working toward cure".
You basically can expect the emphasis not to be on cure and longievity or quantity of life, but rather on QUALITY of life, comfort, and the leaving off of any treatments and invasive testing that can cause harm and suffering even while seeking cure.