We have been developing our WPF app for some 4.5 years now and use the following controls from Telerik WPF UI control set:
I don't see these UI Controls on the Roadmap for MAUI and that is okay; it just delays our timeline for MAUI adoption. As we aren't a UI Component Control software development company we are dependent on folks like Telerik. This is not a complaint as much as it is just a let you know what some of your customers are doing. We need to be to be on the macOS desktop but native macOS development is very expensive. As a start-up that company that builds native desktop apps this is big deal and our investor take note of such things.
MAUI could help to reduce our development cost but only if we can move to that platform with UI Function set we have in our WPF App and to leverage engineering IP artifacts and development resource.
Tavi