I have lifted for 30+ years and something very un-intuitive with powerlifting is the optimal weight class for a height is extremely high.

If you are 5'10" you are pound for pound stronger at 240 than at 198. 198 will be dominated by someone who is shorter otherwise.

You are also much stronger the more you weigh, period. Strongman are eating so much to keep their weight up, not because they are burning so many calories while working out.

Even the most intense prowler workout that will make an untrained person puke their guts out is easy to out eat.

It is easiest to see with a contest bodybuilding diet. Even a 250lb bodybuilder who is doing a ton of working out is basically eating nothing. The body is incredibly efficient at holding on to weight. If it wasn't, humans would have starved to death a long time ago.