...that'd be the Tamron 28-200mm f/2.8-5.6.
I never had a super zoom lens before, and I had a lot of doubts about this one before getting it. And now I can't see myself with it. In many ways, it is the replacement of my now dead RX100VII.
I just love the range, image quality, and speed in that small package. It's also relatively affordable, especially for a full-frame lens.
Of course, it comes with some compromises, like strong vignetting (fixable in post for the most part), variable aperture (it goes down to f/3.2 by 32mm, and it reaches f/5.6 at 158mm) and, above all, it lacks stabilization - this could be a problem when shooting at long focal lengths. Personally, it wasn't a deal breaker for me.