I think Linux is cool and grew up playing with different distributions (starting around Fedora Core 4).
I spent most of my time on Ubuntu because it worked the best, but also used Yellow Dog Linux (my first laptop was a 12in Apple power pc powerbook g4), Arch, and some others.
Things that often gave me issues:
- Suspend rarely worked without hacks, even with hacks laptop would often wake and heat up to thermal shutdown in backpack. Hibernate was similarly bad.
- 'Normal' apps often didn't work or worked poorly (Netflix, flash, Spotify, 1Password), things are a lot better on this front now.
- Monitor support was typically bad and caused problems, connecting to monitor, multiple monitors, resolution issues on wake, etc.
- WiFi was often a hassle and either wouldn't work without hacks or would stop working for an unknown reason.
- Sound would stop working for unknown reasons.
- Bad anti-aliasing/font support in general.
- Personally I thought the UI (mostly gnome, then unity) felt slow and UI elements/chrome often took up a ton of visual space - in general things were uglier.
I think a lot of this stuff is better now, but I recently went to install ubuntu on an SSD in my desktop and had to spend a few hours trying to figure out why ubuntu refused to see the SSD in the installer. I eventually had to unplug the HDD to force it to recognize it.
The macOS vertical integration of hardware and software is really good. I think the touchbar is a mistake (and hopefully will go away like the butterfly keyboard did), but the OS works well, battery life is good, and the applications are nice.
I don't think Linux can compete for personal use, for most people macOS or Windows with WSL is a better experience. This is definitely true on laptops. On desktops I think linux has fewer negatives, but I'd still miss macOS ecosystem stuff (imessage/texting from laptop, things like that).