Unfortunately there have been several problems with my macOS install, and with the Unix ports I install with brew .

There has been a time when the Finder appeared to not get an updated list of inodes . After moving files with the Finder the files appeared in the original directory as well as the updated directory.
Confused by this you might think that you had accidentally copied the files instead of moving them. Deleting 'the original files' would lead to deleting the files in their new directory. They wouldn't be available in their new directory anymore. After all, there were never any copies. It was just that the Finder was still showing them in the original directory. I don't know if the Trash would have been able to restore them; I have the bad habit of bypassing the thrash can. An old habit from when disk sizes were small. So I resorted to always using the commandline even for file-related tasks that the Finder was able to handle reasonably efficiently in the past, using the Finder only for the image previews.
On one recent morning the Finder started working correctly again.

There have been other problems such as sound not working anymore.

Twice brew has appeared to become entirely confused, a lot of packages had to be reinstalled. The second time I reinstalled brew itself as well if I remember correctly.

Today I had to reinstall nmap . I don't know how it broke. It worked a few days earlier.

$ nmap XXX.YYY.ZZZ.0/24
dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib
  Referenced from: /usr/local/bin/nmap
  Reason: image not found
Abort trap: 6
$ brew install nmap
...
Error: nmap 7.70 is already installed
To upgrade to 7.80_1, run `brew upgrade nmap`.
$ brew uninstall nmap
Uninstalling /usr/local/Cellar/nmap/7.70... (807 files, 26.8MB)
$ brew install nmap

After reinstalling it worked again.

The reason I switched from using only Linux to using macOS for my laptop was that I was getting a bit tired after +- 15 years of fixing problems with my personal Linux installs. I wanted something that just works. Unfortunately I can't say that has really become true. What I will say though is that the general quality of this 2018 MacBook Pro is quite good. There have been few crashes, no unintended openings or cracks have appeared on the laptop, and there have been no bulging heat pipes so far. Fingers crossed!

Just make sure not to get any breadcrumbs in your keyboard .

And make sure to charge it from the right side ports .