I'm a computational scientist, and essentially I just use libreoffice impress. It could be much better but it works. If anything like videos will mess it up, I

I'm a computational scientist, and essentially I just use libreoffice impress. It could be much better but it works. If anything like videos will mess it up, I just change to another workspace and show the video, ditto for like "interactive displays." Generally, the hope is presentations are self-contained enough to be exported and emailed as a pdf anyway.