Perhaps not full paragraphs, but the phrase-style nature of bullet points has never really helped me understand the material. If there must be text, I would rather see complete sentences on a presentation.

I've used the assertion-evidence framework[0] for presentations[1] before, where the idea is to have a complete sentence at the top of your slide, with images below that illustrate your point.

[0] https://www.assertion-evidence.com/ [1] While these presentations _were_ about engineering, they were more educational than technical in nature.