Returning diver with some questions

Hey fellow divers I wasn't able to do my part (last played and finished unlocking the cowboy outlaw war bond) for a little while and noticed a few changes about my fav kit and with that came a few questions.

First of all: The weapon customization is awesome. Now my beloved Eruptor finally reached a level of handling, that feels really responsive. (Still use it with peak physique, though)

However here comes my first question: Last time I was active I enjoyed to switch back and forth between primary and secondary non-stop to deal with the slow RPM of the eruptor. But now when I do this, there is a large chance, that I first have to load a bullet before I can fire the Eruptor again (and no way of seeing, if the gun can fire or first has to be loaded. I only know, when I pull the trigger and see what happens). Is this intended?

I know, it makes sense logically, that the weapon can't load the next bullet while it is on my back, but game play wise it feels really bad. I went from "hot swapping gun slinger" to "sitting duck, waiting for my gun to be ready to fire again".

I've heard rumors, that fire dmg got buffed. Does this mean I'm not practically 100% immune with heavy fire resistance armor + vitality boost? I rarely see the double edged scythe anymore. Did they increase the self harm dmg or nerf the weapon in any other way?

Were there any other noteworthy changes that made a weapon or stratagem or play style way better/ worse?

Thanks in advance for bringing me up to speed. ❤️