You could add peel and stick tile. Although if your listing I would leave. As buyers may want to replace with their design.

No, don’t change it. Personally, I don’t love the backsplash or countertops. But I’d rather buy your house and change it to what I like. I would not be inclined to pay more for the house based on that change alone.

I would not change out the backsplash. The new owners will be changing it out to their own likes.

I wouldn't replace it. I'd put something pretty in that corner like a simple cutting board or a pretty bowl of apples. Nothing crowded but something to soften it a bit and make the three surfaces (counter, wall, tile) less glaring.

I guess it depends on your market. Updates on our house were well worth the expense. It got a much higher price than nearby houses without updates. $1 million+ 20-year-old custom houses though. Multiple offers well over the list price.

Let the suggester pay for the new backsplash. Honestly, the ideas people come up with is amazing. Who, in their right mind, is going to pass on a house they love because of a backsplash?

Are homes in your anticipated selling price bracket going under contract fast or has the interest rate bump caused a slow down causing listings to linger for weeks?

You won't get a dime more for changing the backsplash. You might sell the house a day or two sooner than one next door, but that's about it. The backsplash looks fine and believe it or not, there are people who would still consider it quite nice.