I noticed this into PHOG yesterday. In the past I have seen a blip of a pause, maybe a blink of the eye, with the update it was a true pause to the point I wondered if the sim was crashing.
Nothing in the update could possibly have any effect on PHOG, assuming you mean FSDT PHOG installed as default.
This because, we haven't updated it yet to use SODE jetways, it still comes with its own original jetways, which (being custom models) won't be replaced automatically by GSX so, what might possibly have changed with the update in a default scenery, or with an FSDT scenery that comes with GSX/SODE jetways, cannot possibly happen at PHOG, unless you went to the process of replacing its original jetways with GSX models.
Other than jetways, nothing in the update could possibly have any changes at PHOG. The only possible reason of a pause on load which might be *different* than the usual pause on load all FSDT sceneries have ( about 10NM out so it's surely NOT "short finals" ), is that you have preselected a GSX gate while still in flying, so the pause you see are the GSX vehicles being created on gate, to be there for you when you taxi. Those being way more detailed in general, not just because of PBR, CAN possibly take more time to load than the previous version.
But if you select a GSX gate after landing, nothing in GSX could possibly affect the scenery on final, since GSX is not doing anything until you select a gate.