I have a PC with a full AT motherboard running linux. I have installed 32 big ones in the 4 memory slots. When it's not running virrtualbox, it only uses less than 3 or 6 GB. And most of that is due to firefox bloat.
Oh, I was watching an old video of Caspa the Lion Man starring Buster Crabbe and then.....I see the news about the pi 4 running Buster.