3 months post-op. Can I wear a tight-neck t-shirt? Will it pull on or damage grafts?

After the first 10 ays the grafs will be secured and you can start wearing tshirts with tight neck. There won't be any problem.

At 3 months post-op, you can return to your daily routine. If you are concerned, contact your surgeon for post surgery care.

At this stage, there is no problem about what you wear on. The very first 10 days of post-procedure is crucial, until the grafts are anchored to the skin. Later, you can wear anything you would like.