Thank you for your feedback. The team is currently planning for a profile editing experience for Guests that will include changing profile images as well as updating display names. We will share an update as soon as one is available.
An error occurred while saving the commentAravind Raj R commented
Dear Microsoft, There are so many Organisations that requests this feature. Once this Microsoft Teams product completes its outcome, please add this as a request for searching the Display name in Tenant Organisation.