Grevena, Greece, 2021 (from 5:24)
In Miltiadis Tentoglou's hometown, they set up a large screen at the park and many residents went to watch him win gold in the men's long jump in Tokyo. The final took place in the middle of the night in Greece, and you can see the sunrise towards the end of the video.
The first lady who speaks (Ioanna Papadimitriou) is Tentoglou's mother. The next girl at 6:17 is Tentoglou's sister, Katerina. They also showed some friends and his first coach. At 7:24, you can see they painted "8.41" in gold letters on the sidewalk which is how far his jump was, and painted 8.41m of gold letters.
Then in this video, you can see the crowd react to his first attempt at 3:33, and his final attempt (which moved him into gold medal position from outside the podium) at 3:49.
Also in this video we see more of his mother, as well as his aunt: