修改adfs登录页公司名称：
Set-AdfsGlobalWebContent -CompanyName "Exchange OWA"
参考：
ADFS自定义：https://learn.microsoft.com/zh-cn/windows-server/identity/ad-fs/operations/ad-fs-customization-in-windows-server#custom-themes-and-advanced-custom-themes
修改ADFS登录页公司名称：https://learn.microsoft.com/zh-cn/windows-server/identity/ad-fs/operations/change-the-company-name-on-the-ad-fs-sign-in-page?source=recommendations
修改ADFS登录页插图：https://learn.microsoft.com/zh-cn/windows-server/identity/ad-fs/operations/change-the-illustration-on-the-ad-fs-sign-in-page?source=recommendations