I know what you mean! I use a 80mp MF digital back and I have my eyes on the X2D II 100c... so I'll be ok if Canon does not release anything that would tickle my fancy for a while
But it is a bit unfair to compare FF cameras to a MF camera. Very different beasts
In principle, yes, they are different beasts - but Fuji has come very close to FF cameras performance with their latest GFX offerings. I mean, you have a very decent AF with subject recognition, you can shoot 8 fps at 100 mpix resolution, the EVF is probably best on the whole market, the body size, weight and layout are very similar to FF cameras and the lens lineup goes up to 500mm.
500! On a medium format! And you can throw on an extender as well!
Then there's the video segment with very competitive specs, including internal 8K, ProResHQ, various codecs and log profiles and uncompressed 12 bit external, along with some very unique features such as supporting use of anamorphic lenses with live-preview desqueeze. All of that on a large medium format sensor!
Obviously, it's not going to compete in speed with the current likes of Canon, Sony or Nikon, but performance wise it's better than Canon 5DmkIV. Let's not forget that that camera had 7 fps and was and still is a workhorse of many, many pro photographers.
So, while comparing FF with let's say PhaseOne is really pointless, comparing GFX with FF is actually pretty appropriate.