Do you mean i3 cannot handle general browsing tasks?
Please read https://en.wikipedia.org/wiki/Planned_obsolescence
An obsolete laptop is the same as an obsolete phone: it's one where it chugs when opening Spotify, or Slack, or any other "nobody ever bothered to optimize this" app that everyone uses anyway.
Or, to put that another way: you can certainly retouch photos in GIMP, or even in Paint Shop Pro 7 on Windows XP. But what if you want to use seam-carving in your photo-retouching? PSP7 ain't got that. Once you know that your use-case dictates a modern version of some memory-hogging software, well, that constraint dictates what kind of computer is "obsolete" or not for you.
One of my biggest complaints about Apple is the difference between what I consider to be obsolete and what they do.
If you must rebuild Apple’s OSS kernel, you can follow the instructions here: https://developer.apple.com/library/archive/documentation/Da...