Hello @Batterby76,
Zendesk tickets are for requesting troubleshooting help and technical support, not for sharing feedback. Please use the forums for that.
Our team does our best to read every post on the forums. With respect to the reduction in Xbox graphical quality since Sim Update 15, we have logged that as a bug in our system (see link below which we have tagged with bug-logged ), and the panel of Jorg, Seb, and Martial have also previously discussed this on one of the recent monthly developer livestreams.
Thanks,
MSFS Team