If you have got a couple of third party smart devices at home, they offer support for Alexa or Google Assistant. But it's unlikely to work with siri.
Here's a workaround to do it. Check out the video.
Watch video How to use Siri to Control your IoT Smart Devices online without registration, duration hours minute second in high quality. This video was added by user Techtippr Extras 17 September 2020, don't forget to share it with your friends and acquaintances, it has been viewed on our site 4,511 once and liked it 59 people.