as there are still plenty of bugs that need fixing with GSX like the animations of the passengers
You are listing bugs as if they were something obvious or universally know. We can only work on fixes if they are reported here, in detail, with reproduction steps.
So, what is the problem you have with the passengers animations ?
wow the ground crew during pushback clips under the aircraft a lot
Please make a precise example of what you are referring to. If you mean the guy that places the bypass pin on the 737 should crouch because the airplane is low, that's not a bug, more an animation that is just not there yet, to support planes with different heights. If you mean during pushback, please clarify that.
texture flickering
Please indicate the precise, exact, models you see flickering on.
and many more issues.
Please indicate each and every issue separately, possibly with a new thread and a proper title for each one, so they can be tracked.