After 8 years of macbooks, after using the 2018 model, I switched to a Dell Precision 5530 running Ubuntu 18.04 and it is awesome. The hardware is great, and having Unix under it all was the only real reason I liked Macs (used to be hardware, too). Granted, I don't need Adobe stuff, or anything else that doesn't run or have an alternative on Ubuntu (although it is dual-booted with Win10, but I've never used it, just…
I can only come to the same conclusion. Typing this on a 2018 MacBook 15 inch, and it's a disaster. I still keep accidentally hitting the Touchbar ten times per day while typing (it's not a press-bar, duh), I need a dongle for _everything and their mother_, battery lifetime isn't good, the keyboard is prone to mistyping and double clicks, the screen doesn't get bright enough sometimes, I can't get any higher spec har…
You can buy hardware that comes with Linux support including drivers. Changing your workflow is always a pain though, so Linux with a decent DE like KDE could be a suitable alternative for you but because of the big change you could get frustrated and hate the experience.
I am also at that period in life where I don't get pleasure from tinkering with compiling custom kernels, making the PC boot 10% faster, use the latest and greatest... so for me Kubuntu LTS fits perfectly it may be a good option for you too.