Typora is a markdown reader/writer not a note taking or knowledge base application. It's strange for you to compare them like that.
Sounds to me like Obsidian is a Markdown editor too ;-) Granted it has a somewhat specific purpose but I don't find it too strange to compare them.
> Obsidian - Obsidian is a powerful knowledge base on top of a local folder of plain text Markdown files.
Just because two applications have somewhat the same features - the purpose of the application as stated by the developers is different and with that there are different kind of optimization and shortcomings . ;-)
Having tried both tools, I'd say that the "venn diagram" between Typora and Obsidian is one small circle almost completely overlapped by a huge one.