The Lenovo Laptops I have are Legion 7 2021 (5800H / 3070), X1 Extreme Gen 1 (8th gen / 1050ti) vs Dell XPS 15 (12700 / 3050ti)
Both Lenovos are rock solid, not laggy or stuttery.
But I had a Dell XPS 15 (2020) model from work, I gave it back because idling in Windows made the fans spin...
I got a newer Dell XPS 15 (2022) for work (new job) and its great, but its stuttery and the fans spin under light loads. (the screen is amazing tho, i love the screen)
Yes the XPS series is a bit of a cooling nightmare but for example the Precision 3000/7000 series are quite a different story.
(We have around 10 assorted Dell laptops from all the different models and we don’t like the XPS much by comparison, and wouldn’t ever buy another. Aside from thermal issues, for whatever reason the XPS drivers are very beta and always crashing compared with the Precision series which is just rock solid)
For example if the Lenovo is a P15 and you’re comparing it to a Dell Latitude, then yeah duh.