@nichtburningturtle I run Arch Linux on a Pentium 2 E5300 and with some system tweaks like using Dwm/St, less than 1000 packages and args on some software it run smoothly.
I can't find anything to anything to support their assertion that a E5300 is a "Pentium 2", but the chip is from 2008, so it's not relevant to your situation. Maybe they meant it was a Pentium from the Core2Duo time, but that's still not a "Pentium 2".