If you’re already using Ubuntu, I don’t think it’s worth it. They’re fairly similar. Then again, I didn’t even get to install Ubuntu in the first place, the installer kept crashing.
Unless the laptop is a potato and you don’t have a better computer, you can try Mint, or any other distro in a VM to see for yourself.
And welcome to Linux. If someone recommends you Arch Linux, Gentoo or LFS as other newbie-friendly option, it’s a joke.
18 / M / Slovakia