OP sorry for your loss.
I opened this thread because my 15 year old Labbie has been finicky off and on for about 4 months now… another dog who never turned her nose up at anything loosely considered edible by dogs. Also like yours she is the epitome of ‘Good Dog’.
Interestingly, for some reason I had samples of Beneful canned here, knew it was crap, and in desperation tried it. She loves it. Gag!
I’ve been making her special, multiple small meals daily for months now… sometimes the regular canned food made into a soup with her regular kibble added works… other days she only gets interested when I add a nice bit of low salt chicken stock… other days not much tempts her.
It’s not fun… she’s presently gone back to ‘no thanks’ and it’s so hard.
I am so sorry you lost your friend. Like you, I know Emma is on borrowed time, and am willing to stretch my limits of what are acceptable if it means she eats and stick around a bit longer.