Sure... but when looking at sales numbers, HP and Apple are tied by monthly sales volume on Amazon [1], with everyone else being widely behind them. But HP has almost 300 models, Apple much, much less - and Apple can react much, much faster because they almost directly run the production sites and mostly sell themselves, so they can produce an initial run of products and whenever a store or a region runs out of one specific variant, they just tell Foxconn to, say, instead of making a run with black casings they now make a day worth of gray casings, ship that onto a plane and that's it. HP, Dell et al? Their inventory gets distributed by an intricate web of middlemen who all need buffer.
[1] https://laptopmedia.com/highlights/august-2025-best-selling-...