What is the difference between Standard and Enterprise edition?

Standard covers authoring, SPICE and dashboards for individual users.

Enterprise adds row-level security, Active Directory and IAM Identity Center integration, VPC connectivity, customer-managed encryption keys, hourly refresh, higher SPICE capacity, and embedded analytics with anonymous users.

Row-level security is usually the deciding factor. Enterprise also offers per-session pricing for readers, which is what makes broad embedding affordable.