As a JetBrains Mono user for the past couple of years, I used Monaspace all day this past Friday to try it out, and it was not for me. The oval shape of JetBrains Mono glyphs is so aesthetically pleasing to me, and I don’t think I’d be able to switch to another font that doesn’t have similar styling.
Monaspace AUR-packaged fonts do not registered as monospace font in ArchLinux.
Though Konsole can be configured to use the font, Kitty does not recognize it. Manual install in macOS works for Kitty.
I like Neon and Argon variants of Monaspace.
My favorite was PragmataPro (not free) but it has different glyphs from Nerd Fonts. Similar ones are Iosevka, Victor, Mplus 1 code. Now new favorite is JetbrainsMono NF.
SF code, Fira Code are also in the favorite list.
Lab mono, fragment Mono are nice and planning to try them.
Generally I like condense (but not too condesed) round fonts.
I used Dejavu sans mono (but modded to have a slashed 0. It’s based on Gnome’s Vera font, but at the time it had a very large open type feature set that appealed to me.
Fira was my replacement, but I never really could get used to the operators ligatures, so left them disabled. I’m about to switch and try Neon or Argon (though I may end up mixing them a bit if it’s not too much work). Jetbrains has a neat design, but the r and f feel really out of place and I’d have to mod them to not be annoyed all the time.