I have used reveal.js and presenterm for simple work presentations and I enjoyed working with both. You’ll get a lot more flexibility and features from reveal, but presenterm is neat for certain kinds of presentations too.

My condolences for the Windows issues. I hope you have a great time with Mint, that was my first daily-driver Linux distro. These days I seem to have fewer issues running games than my friends running Windows, and I hope it’s the same for you.