Filesystem mod time should transfer with the file, just sort by last modified. Obv make sure your devices time is synced.
Plenty of tools for file renaming out there, I remember liking robo something
Avidemux is about as dumb as it gets for manual load > trim > save. But I like Davinci Resolve, cuz it's a real one.
But on the issue of AI, I have been thinking about this alot. There has to be a video centric model capable of doing common edits?!