There isn’t a built in setting. I believe a CSS snippet can do it. If you search the forum and Discord, you might find one. If you don’t find any for exactly what you want, a snippet that shows any hidden syntax in Live Preview would give you a starting point to adapt.
Yeah, I don’t know a way to stop them from being hidden, but we can kind of fake it with some CSS. If you don’t add any alt/attribute text, the link content will show as is, but you can add your own text using attribute text. e.g. ![[321-note| the 321 note, yay!]]