It's so simple in GOOGLE SLIDES to EMBED a PRESENTATION that you'll think it's a JOKE, but it's not!
If you want to edit your presentation after it has been embedded, you open the Google Slides presentation and make the changes. It will automatically update wherever it is embedded. You don't have to go to the website or web page where it is embedded to update the presentation. Many websites have complicated ways to edit so this saves you from having to deal with the website editing process.