Lot of people seem to judge based on screen size rather than dimensions for size experience.

Here are relative dimensions:

Pixel 3 phone dimensions: 145.6 x 68.2 x 7.9 mm

Zenfone 9 phone dimensions: 146.5x68.1x9.1mm

Pixel 6a phone dimensions: 152.2 x 71.8 x 8.9 mm

Pixel 6 dimensions: 158.60 x 74.80 x 8.90mm

With current slim bezels and modified aspect ratios, dimensions have gone down for relatively larger screen sizes.