Many projects have a link to the code repository in the footer but sadly not all. In fact most of the nostr social clients don't have a footer to put stuff like this. Also as a non-coder you might not recognize these immediately as how would you know why a link might be labeled gitea or GitHub or worse, with a cute octocat or a tea bag.

While I'd love to share a bunch of links here, this is a duty of the developers. If the want to dial up issue reporting, they have to make it easier to report issues. Maybe they only want fellow developers to report issues to avoid low quality submissions?