I think Octorox said he is using a deepfake.

I agree that Hayden’s voice is slightly deeper than how he sounded 20 years ago. If you go back and forth and listen to his voice in the rest of the movie, you can maybe tell better.

It seems a bit of people place it right after the bombing, which is probably a good place. But I feel like there is a natural segue between the bombing and their training, when usually there is a narrative flow between scenes (with the exception of ROTJ). After the bombing, it makes sense to go to Padmé’s senate deleted scene, or the council meeting with Palpatine to discuss the problems in the Republic.

Idk if it would work but I also could picture a version where Palpatine is talking about putting her under the protection of the Jedi, and Palpatine says, “maybe someone you’re familiar with, like an old friend…” (either cut there or keep ‘Master Kenobi’) then hard cut to the Anakin/Obi-Wan training scene.

The only issue with that would be you would go straight from that to the elevator scene, so the difference in their appearance could potentially be more noticeable, but if we are just considering the narrative flow I think this is a logical place for the scene to be. It would be nice to add an extra line for Obi-Wan, where he walks off camera after practicing with Anakin and says something like, “Come now”, or “Let’s go”. Or maybe hear Obi-Wan’s comm beep to life and hear Windu’s voice say, “Obi-Wan”, then cut to them riding the elevator.