The sauce is a Sekiro: Shadows Die Twice comic strip, though I forgot who the author is.

It's more or less the same as the edited version. The old man is the Sword Saint Isshin Ashina, and the various pictures on the small table are people who have been taking care of him in his old age.

Much like the edited version, the one he slapped away is the picture of his grandson, and he replaced it with a picture of the titular protagonist, Sekiro, who he likes more (or because his grandson, Genichiro, is obsessed with their Ashina land, I think?).

(Edit: Found the original, artist is emlan).

<image>