I am almost 8 weeks post surgery. Like you, I incorporate strength training and cardio every week. At the moment, I do cardio five days per week and I do strength training three days per week. One day per week, Tuesdays, I have a complete day of rest. Did I mention I love Tuesdays?
It is my opinion that it is very difficult to build muscle while losing weight. To build muscle, your body needs the raw materials (food) for which to build muscle. While losing weight, your body has a calorie deficit...or in other words, a lack of food. Therefore, it is very difficult to build muscle while losing weight.
Perhaps a good goal might be to maintain as much of the muscle you currently possess through strength training. As you lose weight, you will be losing fat and keeping lean muscle. And muscle burns way more calories than fat.
Odd fact of the day: According to Harvard Health, adults lose 3% to 5% of their muscle mass each decade after the age of 30. (This is the reason we get fatter as we get older even though we eat the same amount.) 🤔