Deleting files in software distribution folder

AB21805 : It is hard to make here a general proposal what you should delete on your systems.

https://support.microsoft.com/en-us/windows/free-up-drive-space-in-windows-a18fae02-a0fa-8df9-9838-8970f9939de4

You can look on a PC what took much storage and what you want to delete in dependence of the size and the use. If you want to use a remediation script instead of a Win32 app, I will be happy to support you in creating it. The advantage here is that you have a reporting through a detection script to e.g. delete only on the devices where the storage usage is >90% and you also see on which devices then the remediation was triggered(https://docs.microsoft.com/en-us/mem/analytics/proactive-remediations).

Here are also some tips to free up disk space but in the end you must decide what you want to delete: https://www.windowscentral.com/best-ways-to-free-hard-drive-space-windows-10.