Yes, but it's a hassle. I bought a 4gb from digikey a few weeks ago. They have a list of stock on their site, although it looks like they are currently out. They are a b2b seller, so you need to verify your identity to buy from them, but they will sell you 1 or 2 Raspi 5s directly.

All that said, the article is about Raspi ramping up production. It will get easier to buy them soon.