So I guess the new membrane they put into the 2018 MacBook Pros didn’t solve the problem? I had keyboard issues on my 2015 MacBook which I think is the first time they introduced the butterfly switches. I got a 2016 MacBook Pro 15 and the keyboard has worked flawlessly. I’ve gotten 2 2017 MacBook Pro 15s for work. The first one had keyboard issues and the second hasn’t but I’ve only had it for like 4 months.

I’ve been lucky support-wise, but maybe you would get better service from your local Apple Business team if thats an option?