As far as i know OBS software is used for screen recording...
So, all you need to do is to find software, which can:
- convert images (ading effects),
- display images from source folder in full-screen mode,
- create slide show (in a specific amount of time)
- etc.
I'd recommend to use
XnView[
^], which is provided as FREEWARE (NO Adware, NO Spyware) for private or educational use (including non-profit organizations).
I'm pretty convenient that there's a lot of similar programs.