surprised by your experience with an older laptop. I have both a 4 years old dell (forget it's name right now, for biz uses) and a 2015 MBA (which makes it 6 years old now), and they are both getting SLOW. In a vacuum - they are fine, they pull through. but they are notably slow machines. (i prefer windows but can't stand the dell and find myself keep going back to the mba - although youtube sucks on that machine with chrome)
edit: oh the mba battery is still a miracle compared to the dell's, btw
I bought the T460p last year. It replaced a 2009 Macbook pro with spinning rust. That machine was fine too, but it stopped getting updates years ago so I had to replace it. I hope that Linux will support the T460p for longer.
Is a macbook pro from 2006 with linux on it :). Good luck trying to surf the net with safari on Snow leopard Mac os 10.6 , which incidentally i had to reinstall before i could transform it into Linux! I use the browser to get me i believe rEFind by roderick w. Smith. That was an experience, i tell you. The DRM stuff is not s problem on firefox after you install the packages it needs.
Note that the parent may not be referring to 4k, but mere 1080p. You only get 720p in browsers except for Safari/macOS, Edge/Windows, or Chrome/ChromeOS.