As Far You Can Tell, You're One Of The Few "regular" Folks Left In The Royal Court. Everyone With Any

As far you can tell, you're one of the few "regular" folks left in the royal court. Everyone with any notoriety, influence, or special abilities seems to have been replaced by one of what you call "the isekai people", none of whom seem to realize that they're not the only one like them here.

it’s never too early to teach children about the devaluation of labor!

(from an American Girls book)

You were the greatest archmage in the kingdom and so powerful that you discovered all there was to discover at the time. So, utterly bored but unwilling to die, you decided to freeze yourself in time for a thousand years. After you unfreeze you find yourself in a modern information age world.