Microsoft 365 software plans have reduced pricing for non-profits, including churches. That can help frugal organizations shift to a more predictable subscription model for their Windows-based work environments. Regular software updates that keep Windows and Office in sync for small organization computers are normally easier to handle than jarring full version updates. Keeping organization computers as similar as possible also helps productivity.
Moving to fully hosted Windows and Office 365 is even better, but many organizations are not yet ready to take that step. Moving from the risks of desktop accounting in the form of Quickbooks to a hosted service like Quickbooks Online is likely to be the first step small non-profits take into modern cloud-hosted cloud-protected IT operations.
Google's Gsuite also has an excellent cloud-based work environment that can be used on any platform. That can be especially attractive to organizations that don't use Microsoft software.