2 adults and 1 younger teen

We're going on a two week road trip that'll be fairly leisurely. Stopping by some parks and sights as we go and a few nights at our ultimate destination

I had my car recently serviced. It all checks out

I have a steam deck on the way! Any recommendations here for travel accessories? Or just in general?

We've all got devices and chargers and their respective blocks. I'm looking at a power inverter for the hungrier devices
I was debating bringing the oculus to give whomever a bit of isolation if they need; is there anything specific I'd need to do to use it where there's no internet? I haven't used it enough to be very familiar with most of its abilities

We adults have ps5s. Most likely won't bring one. I've seen portable monitors that people use with a local device; does anyone have experience using one for remote play for the ps5?

And making sure we've got entertainment downloaded to our devices; obviously books and offline/non electronic entertainment will be brought, as well

I'm really looking forward to this and want to make it the best experience for all involved! I look forward to hearing your tips

Edit to add: the point of the road trip is to bury my grandfather. And I'm petrified of flying in the current state of the US

Since we HAVE to make this trip we're trying to make the most of it by stopping by some state/national parks and other landmarks/pois during which we'll be present. But there's going to be LONG stretches of literally nothing exciting. Like corn fields. Many hours of corn fields. Most days are 6 - 10 hours in the car