I'll preface this by saying that this is not a defence of Apple's SSO issues as outlined in this article; but I think I can bring some quantifiable points to this discussion.
Anecdotally, after over a decade of professional computer use:
- No laptop as light as an MBP that I've been exposed to comes close to the weight-to-stiffness ratio of that case
- No laptop out there has a trackpad that feels anywhere close to the MBP, that I've seen. It's a combination of palm rejection, latency, fineness of controls, and correct handling of multi-fingered gestures, with the actual glass of the trackpad being nice too.
- Most other laptops out there don't ship with as good a display. Granted, the MBP displays aren't P3 calibrated or anything, but the colour reproduction is great, and the HiDPI clarity is excellent. Font rendering in particular is outstanding.
That's just to name a few headline features. Is it possible to buy/build a laptop with those similar qualities? Hard to say. Trackpad drivers in particular tend to be tricky, and Windows precision drivers are the closest I've seen to Apple's trackpad feel, but those will typically fall apart on material feel.
I doubt that you'd be able to make or buy a daily driver that feels as good while spending a reasonable amount of money, and you'd likely spend a good amount of time sourcing parts.
I've had the opportunity to use three other laptop types during my career: two reasonably recent (at the time I had them) Lenovo Thinkpads, a Framework (briefly), and a recentish Dell Latitude.
The Thinkpads stand out, but fall short on the display and trackpad points; otherwise they had a reasonably rigid keyboard compared to the MBP. The Framework was fine, honestly. The modularity is excellent, but the deck flex on the first-gen model was way more than I'm used to, and the display colours were deeply meh. The Latitude was bulky, but I mitigated that and other issues by just running it closed-lid and plugging it into a display, mouse, and keyboard.