I believe they've only increased the height once with the transition to Big Sur. And they reduced the height from Mavericks->Yosemite, so it's back to where it

I believe they've only increased the height once with the transition to Big Sur. And they reduced the height from Mavericks->Yosemite, so it's back to where it was during 10.1-10.9 days, just with one UI row + tabs instead of two + tabs. Are you thinking about something else?