Honestly if you want to learn about platforming I would recommend https://gmtk.itch.io/platformer-toolkit it's an interactive tutorial about platformers and you can even see different presets of popular platformers like mario, super meat boy so you can see how different games create their movement to fit into their gameplay.
But if your intrested more in coding part of things you can catch me on discord usually around 14 GMT for a chat Mentel#0840