As I understand it, the main reasons people use archive.is over archive.org are because archive.is is more of an immediate proxy/cache/cdn, rather than a long-term archival system that requires a bot to crawl based on schedule parameters. That, and also it includes features to help bypass paywalls by sanitizing some (all?) JavaScript.
On the other hand, Archive.org doesn’t remove or alter scripts or anything like that. And as far as I know you can’t just request them to crawl a site and then browse it there immediately, but you can on Archive.is
Yes you can. After you put in the URL, you get a button to do so. I just did it for your comment: https://web.archive.org/web/20230802205505/https://news.ycom...