I confess I don't know much about RV tires. But on my truck I would gauge the tires once a week. If I had to adjust 1, that tire got more attention. Before I pull out every day I would hit each with a hammer. If 1 bounced less, sounded of felt different, grab the gauge. Every stop, first thing after I got out was touch each tire and hub. If 1 was hotter than others, grab the gauge.
Pushing the valve core in on a warm tire is IMHO, a bad idea. All pressure specifications list the value cold so checking after you have been driving gives you no meaningful info. Plus there is a chance the core will not seal.
As the tire heats up, the pressure will go up. But that increase is figured in when people a whole lot smarter than I write the specs. When the tire cools, pressure will drop back to where it started.