Taller but similar h/w ratio I would guess. my bulk is a combination of solidity gained while dingy racing, rugby yand pushing big gears when younger and excess cake retention.
Dropping some weight bit by bit. More riding, laying off the junk food (mostly), portion sizes down but only a little.
You can be a good cyclist and our kind of proportions BUT you may not be fast on anything upward our requiring hardcore pedalling compared to (the important bit) someone of similar skill on similar kit.
on certain types of climb i can out climb some people who are fitter and lighter. Usually something that either drags at a middling gradient OR where short bursts of high torque are needed in the middle of of a more mixed ascent. These same people will hand me my backside on a plate on other climbs, especially a steep mid length one with a draggy surface.
At the end I ride for pleasure and transport not personal bests but enjoying the gradual weight drop, which isn’t so far affecting my other strengths.