It has been a long time since my transition. I remember the journey well. I used to watch nixie does linux and a specific queries for different problems I had in both youtube and google to get what I needed.
I did a search on YT and came up with this video that was derived from the linux foundation. Only watched a few minutes bit might be a good place to start.
https://www.youtube.com/watch?v=sWbUDq4S6Y8
Welcome to linux! Lemmy is very accepting and helpful for your questions as well.