It's also very noticeable on smartphones. My phone is as snappy with native apps as when I first bought it, but every year the ridiculous amount of CPU time and memory it takes to render a basic news article increases. The last time I did upgrade phones it was specifically to get more RAM, as I was finding that modern web pages were so hungry that switching to tab n was almost always evicting tab n-1, necessitating lots of reloads if I was cross-referencing information. And that was on a Nexus 6, not a budget phone, and only a few years after its release