They're still not, due to software bloat. Technical and human-imposed restrictions mean iOS devices tend to be the closest to feeling "fast enough". Desktops a

They're still not, due to software bloat. Technical and human-imposed restrictions mean iOS devices tend to be the closest to feeling "fast enough". Desktops are hampered by little always-on utilities being written in fucking Electron and eating a GB+ each while also burning lots of processor cycles while not doing anything. Or feature-weak productivity suites living in the browser and taking 20x the resources of a more-featureful native equivalent from years ago (or well-written, native, modern alternatives). Or bad low-level building blocks leading to e.g. UI freezing, stuttering, or jankiness. Or vendor malware (Windows) doing god knows what. I've only seen a couple operating systems that seem to give what I'd call enough priority to keeping UI snappy so the user feels like they're really in control and not just begging the OS to give them some time, in competition with their own software. iOS and BeOS... I struggle to think of another. QNX Proton was pretty good but I think that was a side-effect of design decisions made for other reasons, though I guess that still counts. Those would probably struggle to remain so running five different JS + HTML layout engines at the same time, like a modern OS is commonly subjected to. Human-imposed restrictions on iOS are what keeps it from suffering that fate. However I don't think the bloat has yet overcome the benefits of SSDs, in particular, so things are still overall better than they were in, say, the 90s or early '00s.