This is crap answer, no offence. In memory? You know something, but such missleading answers are burning me.
Fingerprinting:
-in mobile browser you can fingerprint devices by many factors like canvas, webgl where you have physical device identyfiers
-in mobile apps it's more complicated, but possible to bypass for example in Android Graphene OS for Pixel smartphones, anyway if this guy use Youtube apps, Google Play Services libraries and permissions are required to run them. This open for apps many backdoors to read physical IDs, even like sim slot IDs, wifi, bluetooth modules ids and others. That's why people for botting are using non Android phones like Apple, where apps have less ways to get into physical identifiers. Also Google apps have more ways to track users than 3rd party apps.
Anyway, do you know that website can detect system even by TCP / IP packets sent via your router? It will not detect exactly different device, but for example most of proxies fails on that because they have Linux and their users for example iPhone.
Location in Android can be spoofed even via scanning nearby wifi devices!
It's not just simple like "ID" in "memory"
To other users:
https://grapheneos.org/featuresHere you have a lot of things that Android can track and not all of them can be fixed with Graphene OS.
Do you know, that apps don't need to have a permission for example for gyroscope usage on Android?
For example TikTok on Android is turning on gyroscope over and over few times / minute?
Why? To check if you are real user and compare your behavior with standard user