The complication of PPT led me, with the assistance of LLMs, to design a simple but powerful enough alternative editor of slides based on a markdown format that uses reveal.js as presentation engine https://github.com/juanjosegarciaripoll/quarkfoil

Good enough for my work as scientist and also as science communicator. Some slide decks from a recent course can be seen here https://juanjose.garciaripoll.com/cern-lectures/

The markdown format is very useful because I can edit the human readable content easily enough and it is easy to get assistance from the LLM in tasks such as designing diagrams, finding typos, completing bibliography, adding paper crops, etc.