In a same Teams, I created a standard, a private and a shared channels. When I try to add "Dynamics 365" app in each of them ("+" button in tabs area), "Dynamics 3365" is available in standard and private channel but not shared one.

Same from Dynamics, I see only private and standard channels but not shared ones.

Would you please support shared channels in Teams. This is a key feature as collaboration needs to invite several stakeholders to prepare proposals and creating a dedicated Teams for each opportunity is messing the whole Teams tenant.