Cloud data security isn't about encryption. It's about knowing where the hell your data actually is
Every security audit i’ve been in asks is it encrypted and moves on. Nobody asks "do you know where every copy of that data actually lives."
Encryption is the easy part. The hard part is knowing you have PII sitting in a 4 year old RDS snapshot, a test bucket someone forgot about, and a CSV export in a shared drive that predates your current team.
If you cant list every place your sensitive data exists you aren’t protecting it. You just encrypted stuff you lost track of.