Hello!
I am a naturalist, and part of my job involves conducting inventories and monitoring nature. This often requires detailed photographic documentation (a smartphone is not sufficient) of habitats and/or plant and animal species. In the days of DSLRs (7DII, then 5DIV), built-in *** was essential. Unfortunately, in the days of the R series (and earlier M series), this is no longer the case. The connection to a smartphone is unstable and not always reliable. I do have a Canon *** receiver, but I don't attach it to my cameras (currently R6II and R8) because it significantly affects their portability. Ultimately, I use it in logger mode and do the geotagging from my computer.
I was quietly hoping for built-in *** in cameras that are advertised as being designed for sports and wildlife photography.
Of course, there is the R1. But... there are a lot of buts

:
- too big for me (I don't have the biggest hands)
- too heavy and not very handy for many hours of exploring the terrain
- I usually use two cameras (R6 with a telephoto lens, R8 with a macro or 24-70).
Well, let's enjoy what we have.
PS. As for the R6III - its specs look pretty good at first glance. I was hoping for a larger EVF and I feel a little disappointed here. And I'm curious to see how the improved autofocus will perform in comparison to, for example, the R5II, in field conditions. (Will the lack of an accelerator be significant?).