It looks like only some headings are cut off at the bottom.I am using Palatino/Georgia with both feed styling and feed title set to M.
— Vladimir
Arch Linux: 5.18.1-arch1-1 x86_64
Firefox 100.0.2 (64-bit)
xfwm4 4.16.1-3
gtk3 1:3.24.34-1 and gtk4 1:4.6.4-1
harfbuzz 4.3.0-1 and freetype2 2.12.1-1