This! I wrote my personal website [1] a few days ago (after it was blank for years) and went for concrete css [2] and plain HTML together with some Go code to serve the files. I set up a server on Hetzner Cloud [3] and my site was up within minutes using Traefik to get a SSL certificate from Letsencrypt. All in all it took me about 2 hours. If you start to play around with a CMS it can take you days if not weeks. Just write plain HTML, boring but sometimes very efficent.
Edit: Bonus! I did the same for my brothers website: https://schnittfest.gmbh/ Just if you're curious.