A53 - Touch stop responding

Hello. Problem with my Samsung A53 5G.

Long story short suddenly the touch screen stopped responding to touch. A day before it stop, it happened again but i let if for 2 minutes in peace and then it started working. This was just a warning because the next day stopped working for good.

I connect a mouse by the usb to take some important files and i put it on maintaince mode and i gave it to repair shop. 2 days after they said they repair. I took it, got charged 70euros/75usd. They said they repair FPC. When i took it from the shop was on maintaince mode and the touch screen was responding well. I went out of maintaince mode and i open samsung members and i did diagnosis of the modules to see that all are ok. Everything was ok.

After 20 minutes i arrived home and i put my sim, and it connected to my wifi as well. As long as it connected to wifi/5g and notifications starts coming (it was offline for 5 days) i notice it get hot (i dont know ifs normal or not) and suddenly the touch stop responding again.

So it looks like the problem didn't solved. Any ideas what to check or doesn't worth to bother fixing it? How come wifi/5g connectivity affects the touch if its related?