For me, I play pretty much the same early on, however especially in progressive knock outs my play varies later on as the bounties increase.
Each bounty in a KO tournament has a chip value, which affects pot odds
and also directly affects ICM.
We can use this chip value to adjust pot odds
and allow us to call +EV with a wider range.
A simple explanation would be a $1.50 tournament with a 50c bounty. You start with a 10K chips. The 50c bounty there holds a chip value of 5K chips. So when a villain shoves that we cover, our pot odds are actually +5K chips.
As for ICM in progressive KO this also factors, while our stack itself holds monetary value, and so does our opponents, his stack value is chips plus bounty. So again, we have to be ahead less often for the call to be correct (put as simply as possible without going into a lot of detail).