Everything seems to be popping out with this floating design, taking out the immersive experience of focusing on the main content.
People even have criticized these floating design (Floating Action Buttons) since a decade ago.
“While FABs (Floating Action Buttons) seem to provide good UX in ideal conditions, in actual practice, widespread adoption of FABs might be detrimental to the overall UX of the app.” Yu Siang Teo - From a 2015 TechInAsia article