I never flip the disconnect unless I will not be connected to shore power for extended periods (aka like a week or more).
Do take note, that your 12V disconnect, probably does not fully disconnect everything. Historically, the control module for the auto level still has power, jacks don't move, but it keeps its memory. Jcommand stays powered up (keeps its memory too), but the connected devices do not work. I have heard rumors that on newer campers the CO/Gas detector still works. On my TT, it gets powered down with the disconnect thrown.
Best thing to do, get a master disconnect and place it on the main battery line.
You can confirm what is still getting power, get a multimeter with an Amp Clamp. First test the positive power lead coming off the battery. If there is a reading, something is powered up. Then test the power feed wire leading into the various devices to determine what is getting power.
Sometimes, if you ask Jayco nicely they will send you the 12V wiring diagram, and you can tell what is always powered and what is not. You need your vin # when you make the request. Many people have said Jayco refused their request. But they sent the drawing to me. I had figured I would lie to customer service that I needed to install a medical device to make the trailer ADA compliant for a family member. It did not come to that
2012 Jayco X23B
2020 Ram Laramie 3500 SRW Air ride 50Gal fuel tank.
2007 Dodge Dakota Quad Cab (retired from towing)
Equal-I-zer 4-Point Sway Control