The phrase "extra fuss" refers to unnecessary or excessive noise, commotion, or attention given to a situation or task. It means adding more complications or unnecessary effort to something. Full definition
She started acting extra nice to her boyfriend and made a lot of extra fuss of him, cooking his favourite meals and bringing him tea in bed, etc.! (thecoupleconnection.net)
This protein shake may be a little extra fuss then the normal water / milk + powder but it's worth it. (freecoconutrecipes.com)
By simple, I mean clean lines and minimal extra fuss. (meijerstyle.com)