Avoid Ubuntu - it’s made by the Microsoft of the Linux world. If you want an easy transition from Windows specifically, then you really ought to run KDE Plasma as your desktop environment, as that is by far the most similar to Windows in terms of look, layout and workflow, and it is very flexible in what can be changed and adjusted. GNOME is the other big one, but it feels more Mac-like or tablet-like.

It’s preferable to pick one of those two, as they support the modern Wayland protocol, whereas other desktop environments still only support X11 or only partially support Wayland - I don’t want to infodump on you right now, but suffice to say that Wayland is more secure, and is widely regarded as the future of Linux, while the old X11 has security issues, and is only in maintenance mode now.

Mint, for whatever reason, and unlike almost every other distro, doesn’t come with KDE Plasma as an option. I would recommend Fedora - it’s very solid and well developed, an all purposes workhorse that can do anything you need it to, and it’s a first class citizen anywhere, since it is one of the most commonly used distros by far. My runner-up would be OpenSUSE. If you’re dead set on something Ubuntu-based, then I would take a look at Tuxedo OS, or perhaps just going back to the roots, and install Debian.