Do photos in Notes take up a disproportionate amount of data? iCloud complaining about limits.

Do photos contained in notes take up a disproportionate amount of data when inserted into a note?

I have lots of notes admittedly, it’s a great app for me, but I need to have diagrams, photos, reference pics in the notes to clarify details.

I notice that iCloud is complaining about data limits, and am perplexed how few photos seem to be taking up inordinate amounts of data.

Is this an accurate observation? There doesn’t seem to be an easy way to quantify the size of a note…but deleting just a handful of photos in a note showed a dramatic reduction in iCloud data…

Is there a way to see exactly how much data a photo contained in a note is consuming? Why are we not able to directly see the file size of a note?