The 28 was on the radar but not exactly pocketable.
To let you know my line of thinking. On top of consolidating all my gear into one system I want(ed) a small ish walkabout and really fancied the X100V, and would get the WCL converter with it. I wouldn't plan on using the converter much but would have it 'just in case', but one of the main ideas was to force myself into a single focal length to try and improve my photography 'eye' rather than taking the same old 'holiday' and 'picture postcard' pictures.
However, as I started to look seriously at the A7R IV shortly after I'm really up to my budget with the Sony gear I want, and as I was a bit put off by the price of the X100V anyway it may have to take a back seat for a while until the price is more reasonable so I started to look at alternatives. Those alternatives have become the 35mm f2.8 'pancake' and the 24mm f2.8 pancake, not quite the same as the Fuji setup as that was 28mm and 35mm eq, but I actually prefer 24mm over 28mm as 28mm isn't 'that' much wider than 35mm. So the thoughts are that the 35mm will be on the camera 95% of the time, but I just want something small and pocketable for the odd time I 'need' something wider. So whilst the 24mm f2.8 might not be the worlds best lens, from what I've read it's optically "decent" and it's tiny enough that I'll take it with me. The Tamron primes and the 28mm f/2 are just big enough that I'd find them a pain having them in my pocket (particularly on holiday wearing shorts) that I'd end up not taking them or getting 'annoyed'
I should be able to pick up the Sony Zeiss 35mm f2.8 and Samyang 24mm f2.8 up for around £500 used, 1/3 of the price of the X100V and wide angle converter.
There's some logic in there somewhere I'm sure
On another note A7R IV ordered and on hold, should be picking it on Wednesday at the same time as saying goodbye to my Nikon and Olly, it's a bit bitter sweet. I'll actually have gone full circle too, Sony > Sony + Olympus > Nikon + Olympus > Nikon + Fuji > Nikon + Olympus > Sony