The 3b1b videos are really high quality, but I don't find them particularly useful when learning new material. The fancy animations distract and mesmerize, I s

The 3b1b videos are really high quality, but I don't find them particularly useful when learning new material. The fancy animations distract and mesmerize, I slip into a mode of being entertained, becoming mostly a waste of time. For subjects I've already learned however they can be useful for gaining new visual perspectives. On the topic of learning rotation matrices / linear algebra in video games, I'd strongly recommend the Handmade Hero youtube channel. Casey explains these subjects at length in multiple videos, using plain chalkboard-style drawings I personally find far less distracting.