I've booked an appointment, sadly nothing available until Wednesday. Hoping for some actual help this time
What I wrote, hopefully it helps me:
2016 15" - 2.9 RP460
"The Y key on my keyboard randomly sticks. Several keys making a high pitched 'clicking' sound when the computer is heated up after a bit of heavy use, encoding video, etc. Keys effected include: 3,4,5,6,7,y,tab,delete,w,i,h,caps. This has been happening for months but has gotten progressively worse and has started effecting more keys. Seems to be an issue shared by many on the net. This same problem is not present on my 15" 2017 model at work? Can the keyboard be replaced?