Oddly, the only stickers I have on my computers are the Intel ones that come ready applied. Younger me would have gone in for stickers but younger me had pen and paper with no laptop. That said, back then it was school bags that got decorated, albeit with fabric patches and badges rather than stickers. Here was how you showed allegiance to music bands and football teams. I didn't do that though since I was not one of the cool kids.
One sticker set I would like consists of morally dubious companies such as defence corporations and failed companies from things such as crypto, mixed up with USAID psyops such as 'Free Tibet'. However I can't be bothered to put in the work. That is why stickers that are ready made succeed, it is minimal effort.
Younger me was surprised at how much stickers cost. When I was working in a bicycle shop we had Oakley sunglasses for sale, and the product was cool. In period people would buy Oakley stickers from us to put them in the back of their car. I expected these to be freebie promotional items but no, they cost a fortune and could not be just given away.