Noob question: Is private proxy http or sock5 proxy?

Can private proxy used in Proxy SwitchyOmega?

There are private http and private sock5, theyre different type of proxies, http are generally for web stuff related like for .social media or web browser proxy.

You can find both HTTP and SOCKS private proxies.

For SwitchyOmege, which is a browser plugin, you need HTTP ones. These are the most used proxies and all providers sell them.

Check the marketplace, most providers offer HTTP proxies https://www.blackhatworld.com/forums/proxies-for-sale.112/