The owner rewarded me $200 for returning it.
I called that number and returned the phone. I once bought an Activation Locked iPhone X on eBay for parts and once I turned it on it had a phone number to call. Also, please remember to not do this with stolen devices, try to get it back to the owner first. Sim cards/cellular/SMS/phone calls don’t work with any of these bypasses along with iMessage and many other small things. You can also bypass any iPhone 5s to X on iOS 13.3+ with a paid bypass for $15 that I’ve tested on 2 iPhone X and it works but its Tethered so if the device dies or reboots, you’ll have to bypass it again. Any iPhone 5s to X can be bypassed untethered on iOS 12.3 to 13.2.3 with the checkra1n jailbreak.
In other words, if you reset or update the device, it will become locked again.
It is definitely possible to bypass iCloud Activation Lock but it isn’t possible to fully “unlock” it.