Difference between the pngs! (Export Selected > MacOS and Windows)

Hello there,

I use both OS' at the same time. Currently I noticed that pngs that being created from MacOS are more clear to read and have better resolution than the pngs from Windows pcs created.

Both designs are created on same file(there is only a text and a small airplane icon on them). Exported in the same way which is File > export > export selected.

Is it acceptable to gather completely different outputs from 2 different pcs on same pngs?