Larsskv said:
To many, me included, the main attraction for considering mirrorless over DSLRs is size and weight. I have the impression that many people believe that the Sony A7/9 series is much smaller and lighter, so making such comparisons is very useful for those who are mislead by the Sony marketing hype.
It all depends on one's shooting style.
For FF cameras, I mostly used f/4 zooms together with a 50 mm f/1.8 or f/1.4 lens. When I make comparisons based on these requirements, I arrive at a different conclusion.
Nonetheless, after several years of dallying with FF cameras, I think APS-C is sufficient for me.
So, I am now down to the Canon 77D and EOS-M5, with a bunch of slow zoom lenses. The only fast lens I have is a Sigma 30 mm f/1.4 lens in EF-S mount. Pretty happy with my set-up so far.