Ubuntu’s popularity often makes it the default choice for new Linux users. But there are tons of other Linux operating systems that deserve your attention. As such, I’ve highlighted some Ubuntu alternatives so you can choose based on your needs and requirements—because conformity is boring.
I think it requires 1GB and it’s an incredibly recent requirement that that does not show up well in most search results. I had the same issue on a recent install and I had to go searching around the internet to figure out the actual size like you did lol.