Siblings supporting each other is a laudable message, but there's a lot of tension around their wealth differences. The main character is secretly writing a novel about their relationships, which will certainly cause rifts.
One character accidentally steps on a moving treadmill and goes flying against a wall (he's uninjured).
Some mild sexual references are tossed around: "My super hot Pilates teacher totally wanted it, and I didn't even do anything," "It's like an American Girl store knocked up a Sephora," and (in avoiding discussing money) "We're actually having a sexual problem."
The only swear word in the premiere is "hell." Characters discuss their sibling's lavish home: "This is obscene. I feel dirty." There are race-related quips among the family members, such as "He married a Latina. Doesn't he get points for that?" and "White privilege much?"
Youngest child Connor is the financial success of the family and has all the trappings of wealth -- a beautiful home with a sweeping view of San Francisco (though he's supposed to live in San Francisco; it's confusing), a fleet of cars for himself and ride-ons for his young daughter, a playroom stocked with a candy wall, and a bathroom with a "robot toilet" that's much discussed.
One character drinks wine conspicuously (including on a treadmill). The two wives who married into the family refer to Thanksgiving as their "special day of drinking" to avoid the sibling fights.