How is it possible for a Company to block Websites when at home, using DNS over HTTPS and no Certificate issued by the Company? [duplicate]

Let’s say, I am in my home office connected through a VPN with the company network with a company device.
When I am using Firefox, not controlled by the Company like Chrome or Edge, the certificates of the websites are not substituted by a… Continue reading How is it possible for a Company to block Websites when at home, using DNS over HTTPS and no Certificate issued by the Company? [duplicate]