Why do you need proxy servers when working with YouTube?
The main purpose of a proxy server is to provide anonymity and increase security when using the Internet. But they can also be used to bypass blocking and promote on Internet platforms, including YouTube.
Proxy servers for YouTube are used in several cases:
access to video hosting;
watch videos with limited content by country and region;
to promote the channel and boost using a multi-account.
For example, using a proxy you can also watch videos that are restricted in the user's country. This is a common problem for CIS users who like foreign content. For this, I suggest using https://proxys.io/en/p/buy-proxy-for-youtube this is an intermediate server that sends and receives requests on behalf of the user. This helps to bypass blocking and increases anonymity on the network.