NET is wrong, if that Lightly Active was honest inclusion of exercise time and normal daily activity.

The others are correct, the TDEE method has already calculated your burned calories into the equation. There is no netting of food. That is why it is important to select the correct "activity level" when determining your calorie intake and deficits.

Hope that helps.

Well, even in that example, the calorie burn shown to you is total for that time.

But since you are in diet you already have accounted for all your time so many calories per hr, you really only need be concerned with the burn above and beyond what is already accounted for.

Additionally, the whole reason for picking a weekly activity level and averaging it back out to daily level, is because lighter or rest days provide the balance to the workout days burning more.

In reality, you could find 24 hrs in your week, probably daily, where you do NOT actually NET your BMR.
The idea that the body runs on a midnight to midnight schedule is kinda foolish, as long as your weekly total shows avg above the line in the sand BMR, and you have balance in a 48 hr time period, don't make your deficit even smaller by netting to your BMR.
If that was the case, then you should eat less on rest days because those are inflated.
In which case, might as well just go back to eating back exercise calories, but with a deficit.

Now, if it's totally beyond the 3 hrs you gave yourself for the week, yes eat those exercise calories back with same 15% deficit to them.

Correct.

And if you miss a planned workout that was part of figuring out that TDEE level, skip 100 calories that day and the next rest day.

If you make it up, add 100 calories that day and the next rest day.

If you add a totally new unplanned workout, log that workout, but with the same 15% deficit to the amount, and eat them all back.