Neither the MSFS forums nor Zendesk is the appropriate venue to report bugs with third-party code. These bugs should be reported to the third-party developers so they have the opportunity to fix issues with their products.
If you posted a bug report in Bugs and Issues for a third party product, it would likely have been closed and you would have been asked to contact the developers directly. I myself have closed several topics recently discussing issues with the A320NX mod.
The new category linked by @EvidencePlz has been an initiative that we have been working on for some time now. The goal is to provide a specific forum for users to have discussions about third-party content, where you can ask questions, provide reviews and seek advice about third-party products while keeping the base categories for core MSFS features only.
In an effort to help users find the appropriate support channel for their mods, we are starting to build this list, anyone can have their group added to it by sending a private message to @moderators.