I've had countless Lenovo laptops over the years. They were amazing up until about 2012 or so. They used to be built like tanks, could survive anything, upgradeable in every way, repairable and affordable (especially used.) There was a span of over a decade where $250ish would buy you a fairly powerful used Thinkpad in decent shape, and it would last you forever because they were indestructible. My Thinkpads went diving with me into canals, oceans, piles of mud, bogs and other non-OEM-recommended-environments and they always survived. Worst case you might have to replace one component, which you could do with a swiss army knife in about thirty seconds. All of those things built tons of goodwill that carries on in people's minds today.
I say 2012 is the dividing line because that's when they released the Yoga, which was a big step in a new direction. I actually owned multiple Yogas, and didn't hate some of them, but they had nothing in common with Thinkpads. In 2012 they also released the X230, which was more locked down than the X220, which the enthusiast community hated. The decline after 2012 was sort of slow - I bought a T440p (released 2014) after my X230 got stolen and I found it was pretty decent, certainly pretty durable - but Lenovo's main focus had clearly shifted towards the new and shiny.
These days they're just another Windows laptop OEM, which is to say: built and engineered like crap, weirdly expensive for what you get, horribly ugly, software full of ads and spyware and AI bullshit, disposable after a few years. The M1 Air was released 5 years ago this year and I still use two on a daily basis for serious tasks; I'll probably be using them years into the future too. They're not really repairable, but they do last. Any five year old Windows laptop is slow as a dog, has small plastic parts breaking off of it, looks somehow even shittier than it did originally, and of course is full of adware and garbage.
Anyway, that's all to say: yes, in 2025 Lenovo is overhyped, but that's just reputational inertia from many years where they were genuinely good.