I’m a new user. I also use TheBrain 12 and there the references/tags which are already somewhere in your system are automatically recognized when you enter a text (with a colour or dashed underlined). This is very interesting if you have a larger file. To see connections (also when zettelkasten) I don’t always remember everything in my file, some help by the software enhances unforeseen connections.
Is this an option in Remnote?