I am by no means letting Apple off the hook here. They seem to have had more issues of late and many of their design decisions are questionable at best.
Having said that, when I look at a lot of the PC manufacturers, I do not see some bastion of reliability. Razer is notorious for poor reliability as is hp. Dell has improved significantly, but they have a pretty poor reputation as well. Lenovo is better, but still a drop from the IBM days. I think all computer manufacturers have reliability and QC struggles, and really I doubt any one is significantly better than another. I will say that I would take Apple's service over any of the others however, aside from maybe Lenovo. We are sitting in an Apple echo chamber. Go to Dell, Razer, hp, or Lenovo centric forums and you are going to see the same things you see here. Just the company and part will be different.
If you dislike the direction Apple is taking their machines, whether it be overall design, usability, price, etc. that is one thing. But to leave because of reliability? I think you are chasing the end of a rainbow there.
EDIT: Also, Apple reliability is not new. I have seen these exact discussions on this forum for nearly the last 19 years! Heat issues, display issues, keyboard problems, case discoloration. None of this is new. What is new is the astronomical prices and design philosophy that really feels like it is going against the type of consumer a MacRumors user represents.