Streaming services, news sites, and retailers often restrict content based on the visitor's apparent country, determined almost entirely by IP address.
How the workaround functions
Routing your connection through a proxy located in the allowed region makes your traffic appear to originate there, which is often enough to satisfy a basic geo-check based purely on IP location.
Where it breaks down
Many streaming platforms specifically detect and block known proxy and VPN IP ranges, including most free datacenter proxies, so this technique works far less reliably for premium video services than for simpler geo-restricted pages or search results.
Check the terms first
Bypassing regional restrictions can violate a service's terms of use even if it's technically possible, so it's worth checking what you're agreeing to before relying on this for anything beyond casual, low-stakes browsing.