This isn't true, the back buttons on the steam controller can be mapped independently.
You are most likely misremembering, there are many controllers that do similar things to what you describe, but the steam controller isn't one of them.
This isn't true, the back buttons on the steam controller can be mapped independently.
You are most likely misremembering, there are many controllers that do similar things to what you describe, but the steam controller isn't one of them.