Hi Tedc,
For recovery weeks cut the volume of your sessions, especially on the big lifts. The volume reduction is based on how you feel but cutting the sets in half is a good place to start. It is still good to keep intensity high, so reducing weight substantially is not necessary. A reduction in balance and core exercises is also not necessarily essential as resting the big muscle groups.
FYI It is also common to keep the routine the same since the reduction in volume from the Swim/Bike/Run is a huge de-load in itself. I would only advise this if you have a lot of experience with strength training. It can be a good way to keep things sharp.
For your strength loading pay attention to motivation, fatigue, soreness, readiness, and the overall quality of your other workouts. Plan to undershoot, it’s best to slowly chip away to gain progress than have intense lifting get in the way of your Swim/Bike/Run, especially in season.
The premium plans have rests weeks built in, I would recommend this to suit your needs.
Best,