The live captioning function in PowerPoint lets you choose the language in which you want your subtitles to appear. The great thing about it is that you can have your subtitles appear in a language other than the one in which you are speaking. Microsoft Translator is another option for translating presentations in realtime. You can use it with or without PowerPoint.
https://www.freetech4teachers.com/2022/11/tools-for-translating-live-presentations.html