Quality Export Lightroom Classic vs Lightroom CC

Hi there,

one thing I've been wondering for a long time: 

Is there a difference in quality if I export a photo in Lightroom CC vs. exporting the same image from Lightroom Classic with access to the original on my hard drive? 

In CC the image is exported from the Smart Preview, in Classic from the original - does this make any difference? 

I'm taking photos with a Canon 5D IV. 

Love to hear your thoughts!