You don’t put stop losses on retirement positions, period.

Doing that literally any time in the last 30 years would have been a dumb idea if you weren’t retiring in the next year.

You would have gotten stopped out and then what? What magic crystal ball do you use to decide to get back in?

Look at the violent downturn during COVID. You would have been stopped out and then likely would have taken a loss and missed one of the largest bull markets in history.

Stop losses with or without trading are for day traders.