See Use a Topic Timer to schedule a topic to be published in the future
Yes. The only part of the topic url that matters is the category ID at the end of it. All of these refer to this topic, regardless of its title and category.
https://meta.discourse.org/t/releasing-related-topics-at-the-same-time/77183
https://meta.discourse.org/t/any-random-string/77183
https://meta.discourse.org/t/77183