@angie_725 Thank you for reaching out to us, As I understand you are looking for a report which provides the information related to MDE agent versions (whether updated one is installed or not).
You can get this information from the - Device health, Microsoft Defender Antivirus health report - https://video2.skills-academy.com/en-us/microsoft-365/security/defender-endpoint/device-health-microsoft-defender-antivirus-health?view=o365-worldwide#prerequisites:~:text=access%20control.-,Microsoft%20Defender%20Antivirus%20health%20tab,-The%20Microsoft%20Defender from there you can export the report and find the information which would help you.
Reference screenshot from my lab. you need to navigate to this section:
Let me know if you have any further questions, feel free to post back.
Please remember to "Accept Answer" if answer helped, so that others in the community facing similar issues can easily find the solution.