Walking very close to someone’s home is also illegal with the right to roam. The right to roam just gives everyone the right to walk were they want except in someone’s garden. You can also camp anywhere (gardens excluded of course) for a day (or two can’t remember) without asking anyone for permission.
One kinda surprising thing is that everyone is allowed to enter fenced animal pastures, provided that they aren’t malicious and that they close the gate.
It’s an amazing right that should exist in the entire world.