Side by side fridges have different widths for fridge and freezer sides. As long as they match I think it would look fine.

I did a 36” fridge next to a 30” freezer - per aziline - I used the same rationale. 36” freezer was not being made at the time I was building Pic attached.

Done all the time.

I used SZ with 36" fridge and 24" freezer. Would have gone bigger on the freezer, but that was all the space we had. Mine are also set up with both handles on the right (and hinges on left) because it made most sense with the way we worked in the kitchen. Most people don't realize they can do this and you don't see many photos.