Good question. What I do is download the song and overlay it the video so its better quality snd you dont hear the floor being slammed. The only features I want are to trim the video, trim the audio and line up audio to the video.
I use kapwing since its easy to use and had the features I want.
https://www.kapwing.com/tools/add-music-to-video
They have a more complete editor too. But they make the quality shit and add a watermark. Online is also annoying.
Default video editor on windows cant trim audio....
Ideally what would be nice if something could auto sync a song with the videos audio.
I would suggest that you use this app to slow the music down to the speed you want (which is what I always do)
https://play.google.com/store/apps/details?id=com.smp.musicspeed
You can also go to the settings and let it show you the BPM of the song, but it isn't 100% accurate.
In-game recording using the camera in the cabinet is only unlocked for use in Japan cause of dumb US privacy laws, so I stick one of these (https://www.amazon.com/gp/product/B07JDN78C7/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1) to my phone, then stick the back of it to the marquee to get the angle you see in the video.