For a 20 year old machine, sure. But any machine that was decent 10 years ago should be at least okay today. My 2008 Thinkpad handles all but the heaviest websites without too much trouble, as long as I don't have too many tabs open at a time.
Agreed, I am using a 2009 Toshiba laptop with Pop! on it, I did some cheap upgrades (maxed RAM to 10GB, used a spare SSD to replace the old HD), it's perfectly usable.
