Doing this would allow you to follow a spend tracker in the context of the current month, meaning you don't need to change the reports tab timeframe just to view for the current month (which also impacts all charts).

Depending on what charts are added in https://lumyforynab.canny.io/features-and-bugs/p/add-charts-to-spend-trackers, we may be able to show those all on the Budget tab as well.