I cant seem to stop people editing certain slides in Powerpoint, version 2307

I can't seem to stop people from editing certain slides in PowerPoint, version 2307.

I can't do the following which I found online
Open the PowerPoint presentation where you want to lock individual slides.

Click on the slide that you want to lock, or select multiple slides by holding down the "Ctrl" key while clicking on them.

From the "Review" tab at the top, click on "Restrict Editing" > "Lock All".

Enter a password and confirm in the popup to restrict editing for those slides.

Please let us know where you found those instructions. I suspect it was here: https://zebrabi.com/advanced-guide/how-to-lock-a-slide-in-powerpoint/

That article is utterly riddled with nonsense; all of their suggestions for locking slides simply won't work, or at best, would only discourage people who aren't familiar with PowerPoint.

Another approach would be to save the presentation as a PowerPoint Picture Presentation. This converts each slide into a picture, so for all practical purposes, it's uneditable. But if you have animations, links, morphs and such, those will not be supported.

Dear Bella Waters,

Good day!!

I understand your requirement but to my knowledge PowerPoint application doesn’t have feature to restrict specific slides in the presentation from the editing. However, we can lock the inserted objected into the slide and protect the complete presentation with a password.

As a workaround, please refer to the suggestion shared John Korchok in this thread: Lock individual Powerpoint Slides - Microsoft Community

I agree with you having the ability to lock specific slides in the presentation will benefit the users and I request you to add your valuable idea as a feedback in the PowerPoint · Community (microsoft.com) which is the best place to share our ideas and improve the Microsoft PowerPoint product.

Thanks for your patience and understanding. Have a good day!!

Best Regards,

Sophia