The message rather clearly indicates that your Surface Pro is controlled by your company’s management policies, most likely through Microsoft Intune, Endpoint Manager, or Group Policy tied to your Microsoft 365 subscription. Those policies are preventing the Windows 11 upgrade.
On the Surface, go to Settings > Accounts > Access work or school. If the company account shows the device is connected to the organization, then the PC is managed and upgrade settings are controlled by corporate policies rather than the local user.
If your organization uses Microsoft Intune, an administrator would need to review the Windows Update policies in the Intune Admin Center. Policies may currently lock the device to Windows 10. The administrator should check Devices > Windows Updates > Feature update policies and Update rings, then allow Windows 11 or remove the Windows 10 restriction.
If Group Policy is being used instead, open gpedit.msc and browse to Computer Configuration > Administrative Templates > Windows Components > Windows Update > Manage updates offered from Windows Update. If the “Select the target Feature Update version” policy is enabled and set to Windows 10, it must be changed to Windows 11 or set to Not Configured.
After the policy changes are applied, restart the Surface and run Windows Update again. The Windows 11 upgrade option should then appear.
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hth
Marcin