Given how uncommon x86 phones are (a few asus, lenovo, etc. that did not sell well) I think it's clear the vast majority of waydroid_x86_64 are not phones, right?
Searching for "waydroid_x86_64 LineageOS 20.0" leads to a sourceforge page [0] of waydroid with LineageOS builds that have 70-80k downloads per month.
It seems to be popular to be installed on CachyOS, which in turn is the 2nd most popular distro to use Steam (after SteamOS itself), so my guess is that it's a popular setup for gaming...
Nobody was saying anything about x86_64 being the vast majority of Waydroid installs or not but you, so not sure what's your point. Read my first comment again.
The parent said "2/3 of US installs are on non-phones (waydroid, nintendo switch, rpi, etc)", you responded with "Some Waydroid installations are on phones". My response to you was about the vast majority of waydroid installs tracked here are highly unlikely to be on phones due to the CPU architecture.
Your response was unwarranted. I never said anything that would suggest that most of these are phones. Some of these 2/3 are, even if they're in the minority.