Do Pokemon keep their ribbons when transferred to Z-A?

I have some Pokemon from old games that I want to transfer to Z-A now that the HOME update is out. They have champion ribbons from their original games, which they kept when I brought them to S/V. Even though ribbons aren't visible in Z-A, will the Pokemon still have them, like internally? Is there even a way to tell?

I'm mainly worried about this because once Winds/Waves comes out and I transfer them there, I'm worried the ribbons will be gone. Any info on this?