19 of Medvedev's 21 titles have been earned on hard courts
A resurgent the Russian player won his first trophy for over two years with victory over Frenchman Moutet in the tournament final.
Medvedev, a former world number one, has endured a challenging season, achieving just one win at the major tournaments and experiencing a difficult moment at the US Open.
Medvedev's unpredictability on the tennis tour - and struggles with his serve in specific - led to him falling of the elite rankings and finally splitting with former trainer his previous coach.
Currently training with Johansson and his other coach, the tennis star has steadily improved in the past month - climaxing in a closely contested three-set victory over Frenchman Moutet.
This marks Medvedev's initial title since the Rome competition and initial on a hardcourt since that period of 2023.
Victory also signifies Medvedev has secured twenty-one championships at 21 various events.
"It's the first time I have attended a competition with my both daughters simultaneously, so to win a trophy is especially meaningful," commented ranked player Medvedev.
"This title is in honour of my child Victoria, because the first title I won when my first daughter my daughter was born was for her."
Medvedev, the former major winner, had failed in his last six finals, comprising in the German tournament previously this season.
His counter-punching play style and regular outbursts on court had prompted observers to wonder if his skill to compete at the top level was concluded.
Yet the athlete has made changes in the past month, attempting to approach the net and perform aggressively, backed up by an enhanced serving game.
The champion fought back from a break down in the first set against the difficult Frenchman, winning four of the final five points to take the lead.
The pair exchanged break points in the middle set before Moutet, attempting for his maiden tour championship, gained dominance to create a final set.
Moutet rescued four early break points in a close final set before the champion broke to 15 to close out the victory.
Fittingly, he secured the title with a shot at the net, with Moutet failing to handle a volley after over two and a half hours.