I feel like that with my debut novel Wizard's Masquerade. Now that it's out, the similarities with Harry Potter and a few scenes/tropes From Blood and Ash (which I only read after publishing) are striking. And now that I'm writing the sequel, I'm noticing some of my ideas show up in existing books I haven't read


which I hope means it's a tried and tested scene that readers will enjoy?
Readers often don't mind predictability in story though, they care about your characters, worldbuilding and how you make them feel. Stepping into a world that feels a little familiar can be a good thing. Like when you really want to experience a favourite book or movie for the first time but dont want to reread exactly that