You can get pixel perfect bitmap fonts by using their TrueType conversions and using fractional point font sizes. There are dozens of bitmap enthusiasts that were in the beta and they're totally convinced because well... it's pixel identical.
I've noted before in issues I'm open to supporting bitmap fonts if someone contributes it, but not interested in adding it myself. The workaround above is very good.
When using the original Terminus font failed, I tried the TTF version (Terminess) which in VSCode at specific point sizes is crisp and sharp. But with Ghostty, it was blurry and hard to read. At that point I gave up trying.
The reason might be that you need to have an "anti-aliasing" checkbox to untick on MacOS (generally in the font selection menu). I switched from Terminal to iTerm for that reason, on my work MBP.
I've noted before in issues I'm open to supporting bitmap fonts if someone contributes it, but not interested in adding it myself. The workaround above is very good.