Different resolution options with external monitor between MBP 16 and MBP 14

I have an M3 Max MBP 16 and an M4 Max MBP 14 connected to the same external display through the same TB4 dock/cable. For some reason, I get different resolution options on the external display depending on which Mac i'm connected to. Why is this and is there anything I can do to standardize these?

Specifically, the MBP 16 gives me 5 display options on the typical "larger text, default, more space" UI. The resolution I typically like here is 3840 x 1620.

The MBP 14 only gives 4 options and the closest option is 3360 x 1418.

And no, selecting the toggle to show all resolution options does not help as there are no options in between 3360 x 1418 and 5120 x 2160.

I had a similar issue with a MacBook Air a while ago, but I assumed it was due to the MBA lacking the graphics power to push the higher resolutions. But there seems to be no reason whatsoever that the MBP 14 wouldnt be able to match the resolution output to an external display of an older MBP 16.

This is extremely annoying and makes using multiple Macs difficult to do from a continuity standpoint.

I do not want to download 3rd party resolution software. I've tried that before and if the resolution isn't available natively it looks like trash. I also shouldn't need to do so.