Comment by b1temy

> The bots will quite possibly have no extensions at all

I imagine most users will also not have extensions at all, so this would not be a reliable metric to track bots. Maybe it might be hard to imagine for someone whose first thing to do after installing a web browser is to install some extensions that they absolutely can't live without (ublock origin, privacy badger, dark mode reader, noscript, vimium c, whatever). But I imagine the majority of casual users do not install any extensions or even know of its existence (Maybe besides some people using something like Grammarly, or Honey, since they aggressively advertise on Youtube).

I do agree with the rest of your reasons though, like if bots used a specific exact combinations of extensions, or if there was an extension specifically for linkedin scraping/automation they want to detect, and of course, user tracking.