After much squinting I have decided it is vertually impossible. There is coolant in there because it shows wet if I poke a stick down there. But I cannot discern a level if I inspect according to the manual.
I'll give that a try when the sun is right. Then I will wrestle and try to draw a line myself.I have no trouble seeing the colored coolant in my 2019 - looking over the fuel tank / under the handlebar.