Hi Bruno Pilosta,
Thanks for reaching out to Microsoft!
Upon reviewing the official documentation, I did not find any mention of a limit for pagination and supported query parameters.
Try using the $top parameter with the highest value to check if it returns more items.
To clarify this issue and seek a resolution, I recommend you raise a support case with Microsoft Graph, a Support Engineer will be able to look into this issue and assist you better. You can raise support ticket from New support request - Microsoft Entra admin center or https://admin.microsoft.com/#/support/requests. This will allow support team to investigate the matter further and provide guidance or a fix.
Hope this helps.
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