My comment wasn’t about PCs specifically, but consumer devices as a whole. Soldered RAM is an easy one, but soldered SSD, USB-C-only laptops, lack of 3.5mm, internal batteries, use of glue in manufacturing, etc. In many of these cases you can probably find another manufacturer who did it first on a specific model, but what Dell or HTC or whoever did simply doesn’t influence the market the way Apple’s decisions do.