Having done both, Tae Kwon Do is almost identical to Shotokan Karate. Karate can also involve weapons, depending on the school.
You just need to remember there are multiple “styles” of Karate much like there are different styles of Kung Fu.
All of them are excellent for fitness, self-confidence and discipline.
You can’t go wrong with any of them, to be honest.
Pinchflat is way less complicated than TubeArchivist and integrated with Plex without any extra work.