Gaming laptops are built to a low price point to be affordable for teenagers and younger adults. Still not cheap due to high-performance GPUs and CPUs, but made cheaply. Corners are cut. Many gaming laptops only last a few years.
For laptops with higher performance and/or dedicated graphics, they should get a mobile business workstation such as HP ZBook, ThinkPad P-series, and whatever Dell calls them now (Pro Plus?). These are more expensive than gaming laptops but should be more reliable for longer (and with onsite warranty).
My home laptop is a HP ZBook 17" (mainly used as a desktop). I got it because it has 4 RAM slots, 2 M.2 slots, and a 2.5" SATA drive bay. Never used the dedicated GPU, got it on special and it only has 7th-gen i5 H-series CPU. Never had the slightest issue with it. (Note: I'm not sure whether the newer models have those RAM and storage options).