Minhchau Dang

In case it helps, I have written a user script that generates permalinks that can be shared with others who also have the user script installed:

https://openuserjs.org/scripts/holatuwol/ZenDesk_Comment_Permalinks

In many ways, you can think of it as a working prototype of the functionality being requested here.

If you have the freedom to install user scripts at your company (information security teams are often rightfully wary of browser plugins, so make sure you run the idea by them before you install any user scripts or user script managers), feel free to give it a spin.