Teams meetings invitations can be customised such as adding a company logo, a legal disclaimer, help information and a text only footer.
This is all done via the Teams admin center, https://admin.teams.microsoft.com, using an account with appropriate permissions such as a Teams or Global Administrator to Microsoft 365. Note that these are global settings and will be applied to all Teams users.
Once you have the portal open, expand meetings then select meeting settings:
Scroll down until you see Email invitation to see the customisation options:
You have four customization options:
Then….