@Maryos the devices listed will be your own unless somebody close by your home has the wifi password. Devices can be listed by names you dont recognise or even listed as Unknown but they should all belong to your household.
If you think the password has leaked then change it see https://www.sky.com/help/articles/find-and-change-your-wireless-password
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
