I am on UK 10-Year Family Route 🇬🇧Can I Bring My Partner to the UK or Switch In-Country?

Disclaimer: this is not a legal advice only sharing information and personal opinion. I am currently on the 10-year family route in the UK. Can I bring my dependants, such as my spouse, partner, or unmarried partner, to the UK from outside the country? Alternatively, can they apply to switch to this route from within the UK if they are already here?