Don’t know, but you’d think they do test. However there are really just too many permutations and combinations to check, which spirals more with every 3rd party add on. So it can only be done by community, at beta stage. But beta report backs seem to not be heeded for a release.
Eg. The default a320 now has bugs including the v/s display in the AP, and waypoint constraints now all say ‘260’ instead of the altitude they should have (they were fine before SU6). PC version of SU6 is fine in this regard. XBox beta tester reported this new bug back, but it got released anyway.
You are right though every update seems to fix some things at the expense of others. I have no idea if in my case EIDW frame rates will be fine after next sim update or not for example. Yet more new content getting added in to mix. Part looking forward to it, but at same time part dreading it…
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