A program for demonstrating illustrations, diagrams, images while recording video from the screen - is there such a thing?

Question

Video

We set the task to develop a video course on a corporate program, in addition to explaining how to work with the interface, it is necessary to explain some points in the form of graphs, processes, tables and other illustrative information. Budget and deadlines are limited - professional video editing + illustrative animation is cancelled!
Hence the question: I am writing the Desktop screen, explaining the work in the program interface, and I need to switch and show the user an illustration of the process, scheme, algorithm, etc.
Of course, I can prepare a series of images or hold an open presentation in the background for this, but maybe there are such software tools?
ps:to shoot an illustration with a voice separately and then insert it in pieces into a video - this is a waste of my time and the client is not ready to overpay.

Answer 1

A software tool Alt + Tabto switch between your application and full screen slides in PowerPoint or just a pre-made PDF.