How do we handle different types of applicaiton specific data/settings at the enterprise
I guess as currently implemented, for file based settings, a modification package without PSF would actually be static if modification package removal is prevented. So a PSF could then perform a copy on write and redirection for items that should be modifiable; we are better off than I expected on those.
Meanwhile there are registry based settings. I think these are modifiable, unless registry based permissions work and are used.
Nevertheless, it would be helpful to encourage software vendors supporting MSIX to identify (document) customizable data/settings to help the IT Pro implement their modification package. IT Pros spend time figuring these out via trial and error, so they'll get it done anyway. But if Microsoft is doing sessions aimed at ISVs and what they need to do it would be great to include this in the checklist.