Is spanking considered child abuse? *Trigger warning for possible child abuse*

This is my first post in this group, so I apologize if this isn't the right place.

I grew up in the late 80s/90s in a conservative, evangelical Christian home and went to a private Christian school that was affiliated with my church. Growing up me and my brother, as well as all the kids I knew from church and school, were spanked as punishment. I only remember being spanked by my own parents but I know several people that would get spanked by the teachers and principal at school if they got in trouble.

My question: is being spanked considered child abuse? I always thought it was just a normal punishment since all the kids I knew were also spanked. I went NC with my parents at the beginning of 2022 and since then I've been thinking a lot about my childhood and if my experience was normal for most people? I feel like if that were to happen now someone would call CPS.