Obsidian thankfully has many of the same features that you're describing, albeit some of them rely on community plugins. The cross platform accessibility of markdown is definitely the biggest factor for a lot of people - but for me, the fact that I can instantly make an aesthetically pleasing note; one that is not just easy to read and gather information from but is also nice to look at: is the biggest plus. Other editors have plenty of templates and most people probably don't care about how their notes look as long as it's notes, but I love the look and feel of a good markdown note