Hello
Do you have Microsoft 365 personal/family/premium plan? If you don't, recording feature is not available to you if you are on a personal Microsoft account.
If you do, did you initiate the recording at the meeting? If so, once the meeting ended, give it a bit time to curate the recording. Depends on how long the meeting is, it can take a bit time. When it is ready, you should find it in the meeting chat record to download it to your OneDrive or local computer. Then you can share it with others.