On 2023-04-08 09:20, Eli Zaretskii wrote:
>> Date: Sat, 8 Apr 2023 06:37:38 +0200
>> From: David Hedlund<public@beloved.name>
>>
>>> Which parts in your code are specific to Windows?
>> All of it, see the attached file in this email.
> ??? These variables and functions work in any GUI environment that
> Emacs supports, including GNU/Linux, any platform that runs X, macOS,
> etc.  So I don't quite understand why you say this is
> Windows-specific.  What did I miss?

It can only be used to "avoid the slightly distracting visual effect of 
Emacs starting with its default frame size and then growing to 
fullscreen" in Windows. But NOT in GNU/Linux.

Can someone else please try to explain this?