Quoting: Corben

But, a bigger vendor like Lenovo seemed a bit more trustworthy if I ever encountered hardware problems.

I thought the same... yet, I got disappointed by Lenovo.

Reminds me of Logitech when I asked them if my Logitech G815 keyboard keycaps will wear away: "no they are laser etched they cannot wear away."
One year later, the black plastic dye over the clear keycap is wearing away on the most used keys, e.g. everything surrounding the etched letter is disintegrating making some letters illegible.
1 year warranty.
I bought a replacement set from Aliexpress for $50 but still, buyer beware these days >:(