Yes. YouTube tends to encourage sensationalized content, as it often leads to increased watch time. So education channels usually aren't as lucrative. This being said, there are quite a few hidden gems: https://youtube.com/c/Reducible https://youtube.com/c/VCubingX https://youtube.com/channel/UCG2IoSJBUhrGL8fb5stMCWw https://youtube.com/channel/UCEwhtpXrg5MmwlH04ANpL8A https://youtube.com/c/CodeParade https://youtube.com/c/YannicKilcher https://youtube.com/c/SebastianLague

and of course my channel!: https://youtube.com/channel/UCuHB_2AOt8vjuvZZp6tSoxg