Cybsis Baseline is the floor of practical information security — the measures every organisation should implement regardless of which other frameworks they certify against. It's included in every installation, always on, and never on the invoice.
If you have no formal certification pressure, Cybsis Baseline on its own is enough — that's what the Basic combo gives you at €700/year. Larger organisations layer additional frameworks (ISO 27001, GDPR, NIS2 …) on top.