your grandma or grandpa's siblings are considered what to you?

I don't know, I never knew them.
The only grandparent I knew was my father's mother who passed away when I was 3, 60 years ago

Grand-uncles and grand-aunts. Not that I have any I know about. All of my grandparents died before I was born.

Great aunt and uncles i presume

I call them grandma and grandpa as well.

Great aunts/uncles

Gruncle and Grauntie

(short for great uncle and great auntie)

All are dead so they are deceased Great Uncles and Aunts.

Grandparent Adjacent

They are gone unfortunately but great aunt or uncle

Dead, they are considered dead to me. Because they are

Old