I don't find trimming videos with ffmpeg particularly difficult, is just-ss xx -to xx -c copy basically. Sure, you need to get those time stamps using a media player, but you probably already have one so that isn't really an issue.
What I've found to be trickier is dividing a video into multiple clips, where one clip can start at the end of another, but not necessarily.
FWIW, here's a simple command line utility for joining and trimming the multiple video files produced by a video camera.
I used a plugin in mpv to do it but I can't find it anymore. You just pressed a key to mark the start and end. And with . and , you could do it at keyframe resolution not just seconds.
I don't find Sharing files with people very difficult, just login to your FTP and give an account to another user. - Person commenting on OneDrive