It’s a fork of Ublock origin and merges upstream changes so there’s no reason to use both.

The error you’re getting with SSH isn’t a problem with the pi, your local user is not root which means you cannot bind to any port <=1024, try listening on local port 8080 instead with -L 8080:localhost:80

Why is the website http only?

No Karma?

It was good for finding useful information online and doom scrolling, now it’s reached its EOL