満足 and 納得: satisfaction with a result and accepting reasons
Compare satisfaction with completed work or a meal with accepting a judgment after hearing reasons, keeping a proposal to revise separate from completed acceptance.
Work or a meal that feels satisfying
満足 (まんぞく) means satisfaction or contentment. “丁寧に仕上がった作品に満足した。” says that the speaker was satisfied with the carefully completed work.
“少ない材料でも十分に満足できる食事だった。” describes a fully satisfying meal even with few ingredients. Having few ingredients does not mean the meal was less satisfying.
Accepting a judgment after hearing the reason
納得 (なっとく) refers here to understanding and accepting a judgment. In “理由を聞いて、ようやく彼の判断に納得した。”, the speaker finally understood his decision after hearing the reason.
“全員が納得できるまで案を練り直そう。” proposes revising the proposal until everyone can accept it. It does not report that everyone has already accepted it.
Compare contentment with acceptance of reasons
The work and meal examples focus on a result feeling satisfying; the judgment example focuses on acceptance after hearing the reason. These reactions can coexist, but one does not automatically establish the other.
Keep the goal of revising a proposal separate from a result already achieved. A proposal to revise is not a report that everyone is satisfied with the work or has already agreed to the plan.
What is the focus of being satisfied with the work versus accepting the judgment after hearing a reason?
Show the answer and why
The work example focuses on contentment with a completed result; the judgment example focuses on acceptance after hearing the reason. Satisfaction alone does not establish acceptance of any particular explanation.