For some reason it seems to try to connect to some atuin server even though I am using default config. That worries me slightly sometimes.

I also had one case where I was using ssh from my home to a machine at one of my parents place and there was an ongoing packet loss problem and so every time I press Ctrl-R to run some previous command I had to wait actual ages for the terminal to redraw because it opens atuin and shows as many lines of history as it can and also updates when you type to search. Of course that is an extreme situation, but it was wild nonetheless to see how much worse the command line experience became in those conditions because of that.

I still use it though, and will continue to as well.