The RAM is still easily upgradeable in the 27" model.
In other words, 21.5" iMacs don't have upgradable ram like models after 2011? Thats a big problem like spending more than 1300 dollars on a 27" model where then you can press a button on the back to open the compartment door in order upgrade ram bought from third party sellers like amazon. Its as expensive as it is to buy ram directly from Apples when purchasing a computer all together.
Then you have ARM contrasting AMD Ryzen CPUs. I ask this Sneaky Snake, because Windows 10 left a bad taste in my mouth. So what does mean for linux distros like PopOS in the compatibility realm? How does that work for audio and video editing programs with or without Lutris and Wine, Unity3d 2020 on ubuntu derived OS's like PopOS, and then theirs Godot?