Regarding Amiga screenshots, they've taken care to get the DigiPaint aspect ratios right, but the Workbench 2.04 screenshot is in a resolution that comes from an add-in graphics card rather than the Amiga's custom chips. It's a resolution Workbench wasn't graphically designed for, so it looked wrong in such a resolution at the time. If you double the screenshot's height, then everything (text, icons, window gadgets etc) looks right.
It would be more representative of the OS, and the era, to have a height-doubled "HiRes" screenshot, 640x200 or 640x256.
The aspect ratio is correct on all screenshots and are accurate de-interlaced representations of a 640x400/512 workbench setup, even though these particular screenshots are in RTG dimensions. Starting with ECS, the Amiga was also capable of true non-interlaced 640x400 output (and even 480 vertical lines unless I misremember) in what was commonly called "productivity mode", limited to 4 colors (2 bitplanes).
Interlaced workbench setups weren't uncommon. I ran such on and off for years for certain productivity stuff where I wanted more screen real estate, until I decided to spend money on a flicker-fixer.
> The aspect ratio is correct
Yes it is, was my post unclear? Following your suggestion that someone might contribute a screenshot of 1.x, which I agree would be a nice addition, I'm suggesting a "HiRes" screenshot of 2.x or 3.x would be a better representation of how it looked in-period to the vast majority of users. The point is just that the icons, text, and general UI chrome were designed for that lower vertical resolution.
I ran the interlaced modes later after buying a flicker-fixer, but didn't know of anyone who used them without one - the flicker meant those interlaced modes weren't generally considered to be very usable.