Filtering Report: Entered By's Home Group = User IDs Other Groups

Right now all of our requestors inputted requests go to the same report and our traffic team reviews ones specific to their division, which we're handling using just a grouping.

I'd like to update the report so the traffic team is only seeing requests for their divisions. Right now the traffic team has the requestors home group's for their specific divisions as their other groups. I think it might be possible to filter based on entered by's home group = user.ids other groups, but I'm not totally sure. Has anyone done anything similar? Do you have any suggestions?