I've worked in a software validation lab for the past 5 years where we have 100s of laptops in use. My bench has 8-10 laptops sitting on it at any given time, all of them running 24/7, though none of them doing anything particularly demanding. So I have what I believe to be some unique experience in this.

All of these laptops are higher end business models from major OEMs (Dell, HP, Lenovo, etc...) I was an avid fan of Thinkpad T series laptops for quite a while, but in the last couple of years I've had a lot of problems with them and am no longer confident in that series. I've never been a fan of HP, and have had mixed results with their products. Their higher end business stuff is decent, but I've had issues here and there. Oddly, despite the many horror stories I've heard, the Dell Latitudes I've worked with have been the most rock-solid. No swollen batteries, no broken displays, no random bricking (happened to two different T460Ss I had), no BSODs.

I've personally not had great experiences with Macs in general, but have a lot less experience with them than PCs. I have not found Macs to be notably better than mid to high end PCs in terms of hardware quality.