yeah actually it is.

basically any system

 atheist
religious
scientific

Are  all belief systems.

Science does require repeatable independent experiments 🧫.

But still involves belief that repeatable independent experiments are not a simple trick done by a god or gods.

Not that I choose to believe God or no God.

I am honest enough to know I am too stupid to know what is real or true..

So I stick with being agnostic and let others argue about the true nature of reality .