A stack of old laptops since they are too good to throw away since I buy good stuff and am a Linux user, so even my 10 year old machines are actually still great. So I use them for vacation to take a clean wiped machine, for things like attaching to a 3d printer or being a part of my electronics workbench or out in the garage. Old android tablets and phones which get used about the same way, vacation, device interface. Not to mention, a smaller but similar collection belonging to my wife. These are just the things I might search in a web browser on.
There are actually browsers also built in to 4 TVs, also in the rokus and google TVs attached to those same TVs, also in the Xbox and ps3. But I won't even count any of those. I have actually used them, but I'll give you those for free since I don't actually use those browsers very much.
Also that just reminded me that all of the old devices are fairly regularly getting reinstalled with some new version of a linux or bsd distro fresh every time I pick one back up, so, no configured profiles.
The windows partition on my main machine is frequently reinstalled since I experiment with trying to use either a partition or Frameworks custom usbc module or a regular usbc external drive, or just a partition on a bigger faster external drive. That's one physical device but a few different OS's, and most of those OS's besides my main daily driver get moved around and reinstalled a lot so they are always new and unconfigured., yet, I still need to use them, and that means I use a browser to search from within them.
My kobo, and 3 or so other eink readers. Which, again, occasionally gets reinstalled, so even the one device needs to be set up more than once.
The only reason I don't have to set up a new phone every 6 months is because I value a headphone jack more than most everyone else. So if you would say my usage pattern is an outlier, I would say, 1 so what? Outliers exist and could even be argued to outnumber the center peak of the bell curve, and 2 some of my outlier usage pattern goes the opposite way, like using the same phone for 5 years.
And then of course I use many machines which are not mine. And this is not even counting that my work used to involve some amount of user it support where I would use a users desk or a hot desk at a customer site, I just mean my own personal normal activity is on many other machines besides my own, including relatives, friends, & public machines.
I had to type "google" (back when I used google primarily, and it wasn't already everyone's default) countless times, even though it was the home page on my own main machine.
This question didn't really even deserve the dignity of any answer it is so obtuse.