I'm right there with you, I got rid of my entire gaming computer and built a new one with Gigabyte parts over Asus. I'm never using Asus hardware again after this phone. Not only are they brutally slow with this update, but the fact that they also disabled Vo-LTE so you can't use RCS support in Canada? Like, Why? Why disable that feature from Android. Enable it, release the update, or at the bare minimum release a public beta for people to try and test out, they clearly don't have enough of a support team so they should honestly just let the public do the testing and bug reports for them.
I've given up on this phone, bought a Galaxy S10+, it sucks, but at least it has a pie update, and Samsung is known for being slower than all hell releasing update, yet, here we are with a crappy Samsung being the superior user experience over the ROG Phone.. hmm.... even Samsung has a public beta they allow users to opt in for testing. Will I be getting a Samsung Android Q beta update before the ROG Phone 1 gets the pie update? The race is on lol
Take notes Asus. I built an $8000 desktop PC and bought a $3500 MSI gaming laptop when I upgraded my setups, they lost out on a lot of money from me and probably many others because their horrid customer support and lack of timely manor of getting things organized and updated.