I think Nim 2.0 would not be warmly welcomed in 2023 if it would be released with such a weak mobile story. Without it, it can't be the one language to rule them all (your words, not mine!). When you google for a way to get Nim to run on IOS and Android, you only find ancient github repos and not much else. The official docs should have a documented, up to date and working way to get your Nim code to run on the most popular platforms on the planet (nearly everyone has a phone).
Just my .02c
PS: The Nim-SDL bindings seem to be in good shape, maybe just have docs on how to get a basic SDL app running on Android and iOS (iPadOS etc.). The blog post about Nim 2.0 points to Godot bindings, those are years old and fairly obsolete once Godot 4.0 is released.
Mobile programming is stupid complicated. The Gooogle and Apple only want things done their way. They don't want programmers to share code between platforms. With one exception being games. So you have to go though "make your mobile app like a game" path. It kind of sux and not very popular.
I have examples here though:
https://github.com/treeform/glfm
I don't think its a good use of Nim's time to try to make it a mobile language as Gooogle and Apple will fight you every inch of the way.
: I think Nim 2.0 would not be warmly welcomed in 2023 if it would be released with such a weak mobile story.
No, do not slow down or distract Nim 2.0 for something that has no requirement to be tied to 2.0 specifically. This does not matter.
If you do the work and specifically identify things that the language folks can do, I'm sure a conversation can be had. All you're doing here is throwing a ton of work at them, doing zero work yourself, and saying "well if you don't do it nobody is going to like you".
Sorry for being blunt but I strongly dislike people that do nothing and throw expectations at others. it is not helpful or productive.