If the the work is listed as 3 sets of 5, or any other rep scheme, you need to go as heavy as you can with good form.
If a %/RPE is assigned use that.
As an example, an exercise like block pulls is typically an overload exercise, so you should in theory, be able to do more pulls off a 5″ block than you could deadlift for 5 off the floor.
Get it?
Go as heavy as you can but don’t let ego get in the way.