Let's say there's a group of people in your hometown who like dogs. They will talk about dog thing this, dog thing that, probably something local. Now you travel to another town and they too have a group that likes dogs. They will talk about dog things too, but probably it'll be different dog things that are also specific to their location.
You have the option to join both dog communities without physically traveling from one town to another. You can even choose not to join a dog group in another town that only like to talk about dog fighting for example.
There is no "tech savvy" required here. You signed up in a town that has communities there, you can see communities from other towns, and you can choose to join them all, some, or none. It's up to you.
There's a chance google has to divest from Chrome, but we won't know until September at the earliest. The process the DOJ brought against it is in progress. Binding YouTube to chrome now might jot be a smart move if google loses the process.
There is a good chance in my mind that google will win against the Department Of Justice simply because of the current administration in the US.
Anti Commercial-AI license