Media Tour 2021 - Class Change Notes?

Sorry if this is a dumb question, but are there are videos that include notes on how base classes have changed as well, not just higher-level jobs? I know that classes are outdated at this point, but since they're still in the game, I'm especially curious to seeing how something like Arcanist has changed since Summoner and Scholar have both diverged at this point. There are some friends of mine who only very recently started playing this game too, so that would be relevant to show them as well.

Not sure about a video but this lists all the job actions and talks a bit about changes at different levels.