What is breast reduction recovery like?

Breast reduction recovery begins with dressings and support and runs on a longer timeline than the first weeks, as the sourced answer below shows.
The direct answer
The American Society of Plastic Surgeons describes what happens first. Following your surgery, gauze or bandages will be applied to your incisions. An elastic bandage or support bra will minimize swelling and support the reconstructed breast. A small, thin tube may be temporarily placed under the skin to drain any excess blood or fluid.
Why the timeline is long
The same publisher is direct about timing. It is important to note that postoperative swelling and bruising may initially obscure the final results, and full recovery can take several months.
Read that as a planning rule: judge the result at the end of the timeline, not at the start of it. The American Society of Plastic Surgeons page on breast reduction and the NHS page on breast reduction (female) are the two sources to compare.
What would change the answer
Your own surgeon's instructions change it. A dressing, a support bra or a drain is handled the way your surgeon says, so bring questions about each to the follow-up visit.
The question that usually follows
Once the recovery picture is clear, readers ask what comes after the first weeks. Your surgeon can answer that for your case, and it is worth asking before surgery, not after.