I tested it and it's not as good as I thought

The response cannot be saved It only works on publicly available pages. which means if you have an account-protected or cloudflare-challenged page, Aria cannot work with it

What it does is basically sends your current page URL to Opera's server to re-crawl it instead of using the content you have loaded on your page. Therefore password-protected pages will not work, because Opera doesn't have your cookies

In anyway, it still works flawlessly on public articles 😃