Likewise. The Pixel 4a was peak for me because of how cheap it was, the size, the headphone jack, and back fingerprint reader. And the pixel's consistent photos.
But the Pixel 6 just feels cumbersome. The reader and double-tap in the back to pull the notification shade feels too deliberate and weighty given the size (This is supposed to be the smaller one). Compare that you could do unlock and pull the notification shade with the back reader and size made it feel great.
I've changed to Niagara launcher which has made it feel better but my next phone is definitely having a proper scanner.