LG fridge water tastes bad- tried everything!

I know I know, there’s a bunch of other posts on this but we have tried everything.

We bought our fridge in February and the water still tastes like chlorine. We’re expecting next month so I really don’t want to be dealing with them while we have a baby. Also, I don’t want to be drinking the water if it’s picking up things.

We’ve tried pushing the filter all the way in place, we’ve tried replacing the filter. We’ve run gallon after gallon after gallon. That would fix it for a little bit, but the next day and the poor flavor is back.

We’ve called LG, which blamed our new water line. We’ve called our plumber, and they put in a ice maker line, that does not pick up flavor. We tasted it out of the line and it was fine.

Could it be the fridge itself? Do we need an entire new fridge? We got it through Home Depot. Would they remove the fridge and install a new one for us?

I really don’t even know the next step in trying to fix this.