For a long time, I’ve just put on DejaVu fonts and been done with it. Generally good enough Unicode coverage for me. But I know it’s been years since DejaVu’s been updated, and I wonder what’s very common today.
[As for the terminal, I’m guessing it’s usually still the standard fixed Unicode fonts?]
The f and t crossers being at different levels breaks my concentration when I’m reading code. I prefer comic mono and fantasque for this reason, but fira code is exceptionally well thought out