My confidence in that hello.bot thingy is not very high.
It says it can detect Chrome, Opera etc., and multilogin, selenium, zenno etc., but it just stops if some anonymisation has been done (as many have observed above already), which could be a sign of browser hiding (as it is in my case with GhostBrowser), but it could also be a concerned user of usual browsers who has some privacy settings on (e.g. RTC). It does the same with a proper Firefox installation.
When I then use the same link with Chrome, no anonymisation at all, not even an ad blocker, with a residential connection, so everything as open as possible, it tells me I'm using Opera or Yandex.
Finally, out-of-the-box installation of Microsoft Edge, not even any plugin, on Windows 10, no proxy etc. and it says I have Multilogin App.