Hello Fernando J. Belizón,
Thank you for reaching out to Microsoft!!
For the issue mentioned when deleting the items from SharePoint, I tried replicating it and the items which are deleted permanently are not found in any of the recycle bins.
Please try again once in test environment and if the issue still persists, I recommend you raising 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.
Hope this helps.
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