I use Neovim + kitty (https://sw.kovidgoyal.net/kitty/conf/) and the performance is phenomenal. Everything is instant. kitty also has a built-in robust layout system so I ended up ditching tmux entirely for it.
Shameless plug but I wrote an app[1] with the same idea of anti-productivity in mind. Having read the book, the idea of 4000 weeks in your life can be scary but also inspiring.
Totally agree with this. I have been advocating this since 2014 and points to my article whenever someone asks me. It needs an update but the general idea is still valid. I do have notifications for some key specific events such as Health, timed events in the calendar, and selected people who can call, etc but otherwise it is pretty quite almost all the time.