I'd advise using Mint in place of Ubuntu as your training wheels/potential daily driver, since Ubuntu's developers (Cannonical) have the habit of making features and restrictions absent in the rest of the ecosystem (Snap comes to mind).

Mint has a much larger and more dedicated userbase, so you probably will have an easier time finding answers to questions (Mint's forums are pretty good nowadays), and it's been an established "Windows jumping-off point" OS for quite a few years now. Zorin is the new kid on the block (while they existed in the past, their quality was nowhere near on par with Mint), so I'd wait and see before checking them out.