Hi,
Thank you for posting in Microsoft Q&A forum.
1,For the client cache size, we can check how do you configure it in the client settings\client cache settings, or use below Powershell command:
Get-WmiObject -Namespace ROOT\CCM\SoftMgmtAgent -Query "Select Size from CacheConfig" | Select Size
2,For the application needed download size, please navigate to Monitor\Distribution Status\Content Status\ (Your application)\Size (MB), we can see the application needed size here.
Thanks for your time. Have a nice day!
Best regards,
Simon
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