A few things that have irked me about the custom folder browsing dialog is that you can't jump to explorer favorites, and it doesn't start browsing from the folder that was previously selected. I think most of these issues would be fixed by using the native shell file explorer, could this be an option implemented later?

Likely has to do with the fact of making native Win AND Linux versions.
Unsure if there's already an option for "default" or favorites. I know there is a recent folders.