Out of curiosity, I looked at Awstats for our domain, and I saw that the number of Linux users had increased to 9%. That's a big jump.
I looked at visitor data, typed in 'Linux' and saw a bunch of visitors with this user agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/151.0.0.0 Safari/537.36.
According to User-Agents.net, this user agent string belongs to the Headless Chrome browser running on Linux. It is developed by Google Inc. and renders web pages using the Blink engine.
https://user-agents.net/string/mozilla-5-0-x11-linux-x86-64-applewebkit-537-36-khtml-like-gecko-headlesschrome-151-0-0-0-safari-537-36
What is a headless Chrome browser? According to ChatGPT:
In my opinion, there's no way that these are real users. I believe the article you read is correct.