The core applications that I use (Firefox, Docker, VSCode, vim, ...) all work just as well on Linux, MacOS and Windows.
I have a Mac, because it's (at least previously) been pretty secure by default, doesn't require me to invest a lot of time sysadmining my own box, and lets me dip into a healthy ecosystem of commercial software useful to my hobbies (like photography.)
The software has definitely declined in quality, but not enough to massively annoy me.
If there is lock-in, it's on the hardware side. I've got an early 2013 MBP, still going strong, a bit dented but it's been around the world with me a few times, so that's understandable.
My workplace uses Dell XPS hardware, and that's good, but it still doesn't feel as solid to me. It's good, but it's not as good.
I think the hardware is the laurel Apple has really been resting on.
I could meet my main use cases on Linux quite happily, and dual-boot Windows for the rest. Right now the premium on Mac hardware, which only happily runs an increasingly decrepit operating system, isn't looking worth it. Previously, it was.