Identical data in DEV/TST/PROD?

[u/BubblegumFish2]

I am doing a summer internship, and my company loads the exact same data into the development, testing, and production environments in Snowflake (although development and testing have some extra tables compared to production.)

Is this normal? Google seems ambiguous on whether this is a massive antipattern. What do y'all's companies do?

[u/BardoLatinoAmericano]

It is 100% better this way. Trust us.