From LivingPianos.

https://livingpianos.com/impossible-notation-how-can-you-connect-notes-through-rests/

The question today is: how can you have a slur over a rest? A slur tells you to connect notes smoothly. A slur on a wind instrument means you don’t use the tongue to articulate the notes. It’s all done with the breath. On the piano, we kind of fake slurs. There’s no way to get the notes between the notes the way a singer can. A true slur is slurring those notes between the notes. On the piano, we overlap notes slightly to give the illusion of a slur. Rests tell you you have silence between notes. So how can you possibly have a slur over rests?

Special Thanks to Virtual Sheet Music
https://www.virtualsheetmusic.com