Her and a bunch of others are active on the Obsidian discord, and from the TTRPG specific Obsidian group, they released a fantastic resource in: https://obsidianttrpgtutorials.com/Obsidian+TTRPG+Tutorials/...

It has a lot there, and not every DM needs everything in here. However, I love this resource as another way to understand all the different things you could do with and without plugins.