if I was carrying gear for 5 days I wouldn't be in trail runners. I would be in trail runners only if I were carrying a tiny day pack - but that's just me.
I guess it matters how dialed in your gear is. For five days in normal 3-season conditions I’d be well under 30 lbs still and wouldn’t need boots. Frankly I wouldn’t wear boots unless I was going to be primarily off trail and/or carrying 45-50 pounds or more.