Game looks bad after using shadders and pipeline asset

I was testing some shadders to make an effect in my game, but in order to use shadders I had to change the Render Pipeline Asset and change all the materials. The problem is that by changing it the colors of the game and even the menu look different and I have been touching the light settings and added post processing but it doesn't look like before, even uninstalling everything that has to do with shadders it doesn't look like before and I'm very frustrated.

this is how it looks

https://i.gyazo.com/2fdb29a4b6d275a3b7115fd54d5bcd62.png

this is how it should look:

https://i.gyazo.com/ab7b9c0fb10c8a3d9a1216f32b32eb96.png

This is how gameplay colors should look:

https://i.gyazo.com/97718747913945f9e82174748690fa00.png

this is how gameplay colors look:

https://i.gyazo.com/d5d62301aeec9abbe955a502b97434c5.png

Those are my lighting settigns which until now they've worked perfectly...

https://i.gyazo.com/b9dabda4e15287e1ad219436201ba6aa.png

[preview of external content removed for GDPR compliance as it was including 3rd party cookies]

Even the UI looks with more highlighted and suffocated colors and it looks very bad.