Allow device exclusion from Managed Install
When you check "All Devices" for a Managed Install, it would be nice if you could exclude certain devices.
For example, we have users which use Adobe Pro, however Adobe Reader is a managed install which will deploy to every computer as every user needs it. However, it overrides Adobe Pro as the default PDF application. So being able to exclude our users which use Adobe Pro would be a nice feature.

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Raymond commented
Another situation is that we have some PCs in meeting rooms. Meeting room software, e.g. Zoom Room, is installed on them. The PCs are used for meeting only. We don't want to install any additional software on them even if 'All Devices' is ticked in Managed Installation.