The horror stories often come from years ago, when Linux wasn’t as under-friendly as it is now. You shouldn’t have any problems with this.
And if Mint does give you problems (which I doubt), consider trying a plug-and-play gaming distro like bazzite. It supports nvidia GPUs right away.
I hope this holds. There have been several such migrations in the past, and they didn’t last. Seeing as it is just email and not the entire OS/software landscape, it will probably hold.