That font with a bit of margin looks fantastic on my phone specifically. Really nailing the minimalist look. What font is that?
"font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";"
from the css so odds are it's whatever your browser or OS's default sans font is, in my case it's SF Pro which is an Apple font though it may vary if you use a non Apple device.