Is it a code violation to have so many outlets and switches on a single breaker?
Dining room, living room, bedroom and lighting receps all on the same circuit is totally legal under Code.  It's a severe case of min-max'ing for builder cost rather than occupant usability, but it's not illegal at all.  This &quot;min-max&quot;-ing is particularly strong in manufactured homes where a single factory builds tens of thousands; a guy can earn a year's paycheck by figuring a way to shave off $5 per unit. AFCI breakers are $40.
A gas stove that has a 120V plug-in is allowed either on general house circuits, or on the dedicated kitchen countertop receptacle circuits.  That is because of an exception that allows it on the kitchen countertop circuits, which normally don't allow any fixed appliances.

As far as &quot;GFCI Protected&quot; labels on plain receptacles, any GFCI device can feed other devices that are also equally protected.  That's legit.  Further, the labels are not just legit but mandatory. If you see a plain outlet that you know is GFCI protected from another outlet, and there's no sticker, that's the Code violation.   If you don't like the blue stickers that come in the GFCI package, feel free to make your own!

Honestly, this is almost certainly a &quot;Pilot error&quot; problem, and the user needs to be educated that electricity is not just magically infinite, circuits have limits which are knowable, and each appliance takes some amount which is knowable.  So there is no mystery here.
After some problems with trips, I skilled up my sweetie, who now knows how to find an appliance's nameplate and get amps, and divide by 120 if only watts are shown, and can recite off &quot;Toaster 7, heater 7/13, hair dryer 12&quot; etc.  And also knows which outlets are on which breakers (it's not hard in this house).
In a more complicated house, I would resort to labeling each outlet for circuit ID and ampacity.  I'm fond of whimsical names like Thor/Odin/Loki/Sif/Hulk/Groot for circuits, but whatever you like.
The gas stove has too small a current draw to even be worth calculating, e.g. cell phone chargers, internet routers and the like, as well as LED bulbs.  The gas range/oven is one of those: the onboard electronics might take 10 watts max, plus a 25-40 watt oven light; that makes 35-50W or 0.3 to 0.4 amps.