Mathologer on YouTube uses PowerPoint (or keynote, don’t remember exactly). He has great math animations. I’m sure it takes a ton of time to make. (It would also take a ton of time to make with manim.)
I have actually done both, and the time taken to do the same task in PowerPoint is much lower. I would say 1/5th or 2/5th.
Also, as I said, the experience of writing code with Manim Community is not good.
If you have experience using prewritten libraries (i.e. you are not an academic or traditional Data Scienctist, and have proper programming experience), you will see that Manim is a bad tool. Not mincing words.
Yes, it takes time. But you get better and spee increases.