We have really have enjoyed looking out the six foot rear dinette window in our RD2020BWE..... that is, until the sun hits is on a hot day and it turns into a solar cooker... Even with the curtain pulled down it still cooks...
I looked at the "Carefree" pull out shade awnings but the price ($350) put me off... I found this
Coolaroo 474799 Roller Shade, 6' X 6', Almond shade screen for $60 on Amazon and installed it... I will let you know if it blows off going down the road but it should help with the solar cooker...