I finally ditched it a few weeks ago, finally replacing it with a Ryzen 7 desktop.
I'll admit my XPS 15 was a factory refurbished model, so maybe I just got a lemon. It got so hot the battery is now swelling and it popped out the trackpad (I think there might be a recall; or if not take it in since that's gotta be under warranty).
My current laptop is a HP Spectre. It's thicker than the XPS, but I think it's got a much better cooling solution and preforms better. I don't think I'd recommend a Dell XPS again.