Bot Framework suits organisations that:
Run on Microsoft 365 and want bots in Teams. You want internal experiences where your teams already collaborate.
Have .NET or JavaScript engineering capability. You want pro-code flexibility and maintainability.
Use Azure for infrastructure. You want hosting, identity, and operations aligned with your cloud environment.
Need enterprise controls. You need SSO, compliance-friendly logging, and governance patterns.
Want native-feeling Microsoft experiences. You want bots that fit the Teams interaction model rather than feeling bolted on.
The trade-off is more development work than fully managed platforms, balanced by flexibility and control.