LibreOffice - Impress is a free and open source presentation program from the LibreOffice suite of applications. It is designed to help users create sophisticated and attractive presentations quickly and easily. With LibreOffice - Impress, you can create attractive slides with high-quality images, text, transitions, animations, and other multimedia elements. You can also customize the layout of your presentation with various templates, fonts, colors, and backgrounds. You can also add charts, tables, and other forms of data to your presentation. Additionally, you can share your presentations online, as well as export them as PDF, PowerPoint, or HTML files. LibreOffice - Impress is a great tool for creating professional-looking presentations with a wide range of options.
Bundleware The installer contains adware and possibly other malware as well. Be careful during installation: https://alternativeapp.info/discussions/applications/11718/be-careful-in-the-installation/