Open your Google Slides presentation.

Select the text, image, or shape you want to link.

Click "Insert" in the top menu and select "Link", or press Ctrl + K (Windows) / Cmd + K (Mac).

In the pop-up box, click "Slides in this presentation".

Choose the slide you want to link to from the list.

Click "Apply" to save the link.

When presenting, clicking the linked element will navigate to the selected slide.