Currently the tag can only be seen after you open the note, but not when browsing the whole notebook (e.g., in card view), which is very inconvenient.
For example, I can have two notes for one topic: "[idea] machine learning" and "[survey] machine learning". I have to explicitly insert the tag text to the title so that I can see them when browsing the notes. However, in this way, when I want to view all the ideas, I have to search the keyword "[idea]", which may come back with some undesired notes with the same word.