In reality, yes; you can control a Smart Plug without Internet. Here is the story of how I found out and how it works.

While Roku can work with any HDMI port, you won't be able to watch shows in 4K or use features such as Dolby Vision or HDR10 ...

The Meross Outdoor Dimmer Plug gives you more control over your lights than a regular smart plug can. However, while you can use it indoors or outdoors, it's tailored more for outside use. Smart plugs ...