XQuartz is a collection of many pieces of software that are developed by many different groups. As such, bugs may be filed in different bug tracking systems depending on what component is affected.
XQuartz and General Screening
If in doubt, just file a ticket on Github. You might be directed elsewhere, but it’s a good first step if you aren’t sure where to file your issue.
Related Projects
Legacy Systems
The XQuartz trac instance on MacOSForge has been taken offline. Many of the tickets on it have been migrated to gitlab.freedesktop.org. However, we have archived the tickets for reference purposes: