Let me explain why IMO Google should have went with more instead of trying to rope this calf with some silly string. Apple gets away with it because they are the sole developer and producer of what they sell. Their phones don't do what most android phones are able to do until years later most times. Example of this is the background processes they run are less than android and they don't really multitask. They just give the illusion of it but suspends most apps in background. The customized A series chip and the NVE storage they have give them a huge edge over android in being able to use less resources than android phones.
The Pixel 2 4GB of ram is great for what it does, how it is used, and the features it has. The Pixel 3 though is doing way more than the P2. The more features and beefier hardware probably called for more ram in the P3 IMO. The Visual core is being more greatly used, more on device machine and neural engine use, more AI and camera features. I'll admit the ram controller might be the issue but I think that keeping the same ram amount as the P2 was not the best idea with what they are trying to do with the P3.
And like you said my iPx has 3 GB and your iPxs max comes with 4GB ram. Kinda telling when even apple had to bump the resources up for all the features the phone has to run. The more features and tech you pack in the more you have to add resource wise to get the same experience. It doesn't go up symmetrically but you do have to account for user experience.
Ram controller issue....we will see and I hope for the best. I scratch my head though and ask did any normal user in Google HQ even use the Pixel 3 series other than your software design and hardware engineers when it was deemed finished and ready for mass production.
Google touts the camera/features of camera and no one shot a video. No one shot a video squinted their eyes and said "Why does the audio sound like that?". Google comes out and says it focuses on speech and suppose it is suppose to sound like that. Unbelievable at best and makes me ask what or the other companies doing then since they don't sound like that. Ram controller being super aggressive...IMO Google set it that way. Thats not the kinda over site thats just missed in QC/QA software wise a lot. Hardware problem with a controller yeah, software wise it's something you set the parameters for.
I'm going to wait and see down the line what happens and if it is software i'll see the fix issued with an update. Until then it's not a phone thats high on my list anymore no matter the camera and features. I'm not a google hater or apple hater I just like to hold them both to the fire on occasion.
IMO though just for me...I think they tried to shoehorn this stuff in and skimped on the ram needed to provide a good user experience. If it's a ram controller issue then I think they need a better testing team of users to put these devices through their paces before release.