19 of the Russian's 21 championships have been won on hard courts
A comeback the Russian player won his initial title for nearly 30 months with a win over Frenchman Moutet in the tournament final.
The athlete, a ex- number one, has endured a torrid season, winning just one match at the big events and experiencing a difficult moment at the New York tournament.
Medvedev's unpredictability on the professional circuit - and difficulties with his service game in specific - caused him dropping out of the top ten and ultimately parting ways with long-time trainer his previous coach.
Now collaborating with Thomas Johansson and Goetzke, the tennis star has consistently improved in the last few weeks - culminating in a tightly fought competitive victory over challenger Moutet.
This represents his maiden trophy following the Italian tournament and maiden on a hardcourt since March of 2023.
The win also signifies Medvedev has secured twenty-one titles at 21 distinct competitions.
"This marks the first occasion I am participating in a event with my both daughters at once, so to secure a title is really nice," commented ranked player the champion.
"This title is in honour of my second daughter Victoria, because the first title I achieved when my first daughter her name was born was for her."
Medvedev, the former major winner, had lost his last six title deciders, featuring in Halle in the past months.
His counter-punching strategy and recurring reactions on court had led observers to wonder if his capacity to play at the highest level was finished.
However the athlete has made changes in recent weeks, attempting to come to the net and play positively, backed up by an improved serve.
He fought back from a disadvantage in the first set against the difficult Moutet, winning four of the last five exchanges to go ahead.
The pair swapped breaks in the middle set before the challenger, attempting for his initial ATP Tour victory, seized the initiative to create a decider.
He defended four initial break points in a close deciding set before Medvedev won the break to 15 to serve for the match.
Fittingly, the winner secured the title with a point at the net area, with the Frenchman incapable to control a return after over two and a half hours.