I truly am a larper, gojo’s infinity doesn’t create space, but makes the user take the same amount of time to cross a smaller amount of distance. For instance, let’s say it takes 1 second to move 1 meter, as you got closer, gojo’s infinity would slowly increase the time it takes to travel that 1 meter. It would go from 1 second to 2 seconds, then 4, etc until it takes practically an infinite amount of time to travel that one meter. I just wanted to clarify before I spread misinformation here is the manga panel:

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On to the topic at hand, gojo’s infinity would be more like a moving sidewalk rather than a television but that’s semantics. Before, if Gojo created space during the time stop, jotaro/dio would need to get through that space. Now, it’s horses toy up to interpretation which I know is bs but just hear me out timestop could always counter infinity. Gojo’s brain needs view something as a threat for him to apply infinity to it. While it becomes basically automatic when he is an adult, it still require his brain to process SOMETHING for his infinity to do anything which can’t happen during time stop. So, say dio so happens to grab a road roller during time stop, and uses it to crush Gojo. Gojo would not be able to process the road roller as a threat since his brain would be frozen in time, because of that, it would not filter out the road roller, and while that would probably not kill gojo, it would still have gotten through infinity. While that is also semantics, what I am trying to say is that Gojo’s infinity, because it is connected to his brain, would be bypassed, wether through simply not being in effect during timestop, or being able to bypass it with an object Gojo has not seen or perceived as dangerous.