Browser Nightly has an "Add Card" filed on right hand side of desktop, but can't see it on standard Brave

Hello all,

I have installed both the standard Brave as well as Nightly, I do expect differences between the two, but one visual difference is that I can see an “Add Card” to Nightly desktop, but can’t see it on standard Brave. I am very new to both versions but I increasingly like them a lot and will most likely become my new daily drivers…

Am I missing something here? Is “Add Card” a Nightly-only test feature for now, or I can make it appear onto standard Brave (and how)?

Thank you!
Christos

I have been trying to find the ‘add card’ button to no avail in my desktop (standard brave) - trying to add the Gemini wallet -