Zorin OS or Linux Mint for a first Linux install?

I'd start with Linux Mint Cinnamon. The desktop is approachable, and you can do most everyday things without living in the terminal. Mint also has a sizable community to turn to when you get stuck.

If your computer is older, Mint's Xfce edition may be worth a look too. It's a lighter desktop, though it has a different look and feel.

Zorin is worth trying if you like a cleaner, more modern-looking desktop. That can make the first few days feel less intimidating. Its Windows-like presentation doesn't mean it behaves like Windows in every detail, though, so expect some things to work differently.

Hardware compatibility matters more than a general recommendation. Try both in a live session and check your Wi-Fi, sound, display and any other hardware you rely on. Pick the one that works well and feels comfortable to use.

A virtual machine is handy for exploring the interface, but a live session on the actual computer is more useful for checking its hardware. Back up your files before installing either one.

Look at how each system handles software packages, especially if you have a preference about Snap. Mint's approach to Snap is one reason some beginners choose it. Zorin has Snap integration, although calling it forced is disputed, so check how it works in the version you're considering rather than assuming you can't change it.