So I figured out an idiot proof test to this whole issue. I have no idea how this happens because I don’t understand the whole system yet but what I’ve figured out works 100%.
When I’m easy on the brakes like a normal person should be and whether simply slowing down or coming to a complete stop, when you accelerate after this the truck sputters, requires more gas pedal travel, and acts as if it lost half its power plus the transmission does weird things.
If I mash my brakes to slow down or come to a complete stop or even after I’ve already stopped/just got in the truck and just mashed the pedal down and now go to move again the truck requires hardly any gas and it’s accelerates like a dream, no feed back like I’m getting kicked in different wheels,all the power is there, it shifts perfect, and moves effortlessly.

This test has worked 100% every time. Even doing 60mph just easily braking and slowing down to 50mph and then trying to speed back up again the truck moves like complete crap. Push them hard from 60mph to 50mph and go to accelerate again and it’s absolutely perfect, downshifts correctly and everything is smooth. This even applies to being at a stop and waiting or coming out of park to drive. If my foot is only applying the pressure required to keep the truck still then it’s going to speed up horribly but if I simply mash the brake pedal in further when at a stop then the truck moves flawlessly on acceleration. There is no question that anyone would be able to tell this happens after I tell them to brake and accelerate two different ways.

What the heck could cause this? I’m mind boggled as to why if the brakes are hanging up that mashing them harder is clearing issue versus using them lightly. Could it be the fact that something like a kink or twist is not allowing fluid to easily come back out of the calipers unless there is more fluid from mashing the brakes that provides enough needed pressure to get past the hang up when it’s trying to return? Or could it be electrical and related to the pedals themselves not working correctly? Like if I’m not pushing the brake to a certain point it’s not registering a full release when I left off? I’m praying its not electrical but I’m also hoping this has something to do with the clicking coming from somewhere down by my feet, under the truck or down toward the engine compartment behind fire wall.
Not expecting anyone to tell me what’s definitively wrong here but just sharing what’s going on with any insight being a bonus.

This is the only part of the system I could find that aligns with the contradictory fact that hard braking is aleviating a possible trapped fluid issue but only if it’s trapped in the rears.

The proportioning valve modulates pressure to the rear brakes so that as weight is transferred to the front wheels under heavy braking loads and pressure on the system is increasing, less and less pressure is being applied to the rear brakes.

That sure seems like it could be an explanation for why hard braking would conversely alleviate a hang up.
When I brake hard enough pressure is lessened on the rear brakes by that valve doing its job, so if there is indeed a rear brake line issue that is blocking fluid escape after release then the proportioning valve could be the only thing letting it escape during a hard brake.
But during light braking when the valve doesn’t need to facilitate a release of pressure to the rears the fluid can’t escape on its own? Who knows but that’s interesting in how it aligns.
A rear brake issue also aligns with all the lines being moved for the additional tail pipe. The rears also align with the fact that I’ve gotten very binded up feeling twice when my back tires broke free. When they started spinning the traction control I’m guessing started sending fluid to provide pressure on the slipping wheels to get traction again, and with so much slipping a ton of pressure was probably built up and if not able to properly release would explain the feeling of an elephant in the bed of my truck afterwards.