Open-source changes from outside the core contributors are notoriously hard to get approved. There is usually politics in play. For instance, why is there not an easy way to copy a link to subsections?

The easy workaround is just to create a WebExtension. If enough people use it, then maybe the core team will take the hint..

https://churchofthought.org/blog/2020/01/20/a-simple-webexte...