Are they within driving distance of another over? If you look at the map they are close to at least 2 others
Haven't seen a map of where the Chinese one is.
Mars has the same surface area as earth land masses. As most rovers and landers have avoided the poles, I'm sure some are within 1000km of each other. But as there are no roads, any vehicle will take some time to travel across the land. In the movie the Martian, it took him a few weeks to travel 3000 km.
EDIT: Having found a map, they Perseverance Rover and Tianwen-1 are about 2000 km apart. https://en.wikipedia.org/wiki/Tianwen-1#/media/File:Mars_map_with_landing_site_Tianwen-1.png
About 30-35 degree of longitude apart or 10% of the ~21,000 km circumference at the equator.
Insight and Curiosity are fairly close. However Tianwen-1 is closest to Beagle, or what's left of it.
I suspect very strongly the Chinese would have gone to significant effort to ensure at no time was either the Perseverance or Curiosity rovers placed at risk as this would likely see the Chinese sent a $2B bill and more importantly international embracement across science and political communities. Also the 2nd last thing the Chinese would also want is Perseverance or Curiosity (both of which will outlast the Chinese rover by 10 - 20 years) from strolling over and taking lots of happy snaps of the Chinese leading space technology.