Toshiba Sattelite C670D-10H (2011):
I forgot to tell what's so special about this piece of junk.
This low-budget laptop was generously donated to me by a lovely lady with the lovely, almost romantic, words: "get this piece of crap out of my sight, I hate it !!"
Now I understand this because the poor laptop, which wasn't particularly fast to begin with, had endured some kind of "electrical accident" which had resulted in a blown up battery, a blown up harddisk and some random blown up I/O circuitry in between so it didn't do that much anyway anymore.
It was actually amazing that, after connecting a replacement disk that it came back to life, although pretty crippled: The speed of the I/O was only half its specs.
Swapping the harddisk out for an SSD didn't make any difference speedwise so I left the old replacement "spinning-rust" device installed.
Therefore testing Ubuntu MATE 24.04 on this device can immediately reveal some I/O bottlenecks, including any bloat or overengineering 
Since its I/O is crippled but its RAM is 6GB , I did set vm.swappiness = 5 to keep most of the desktop loaded. It did make the system much more responsive 