Nissan X-trail (T32)

I have a nissan xtrail 2016 with the 2.5L engine

I bought the car with 30k Km on the dash then covid hit and didn’t drive the car that much
Now the car has 99k km but there is an issue that i have been chasing and couldn’t solve it yet

The car drives fine but when hitting full throttle or even half throttle for about 20 or 30 seconds then going back to idle
The car starts acting weird, the rpm is not steady and the acceleration afterwards is hard and very slow it feels like there’s a miss fire but its not
I changed the air filter, cleaned the throttle body, cleaned the MAF sensor ( there is no check engine light what so ever)
I have done everything and took it to 4 places and ask if a injector cleaning would fix it and they said no its something else
This problem only happens after hitting the throttle more than half otherwise it drives fine
I want to know what could cause this problem
I even had to change the gearbox at 88k km to a fully new one
The car have been nothing but a headache