Can you try checking your DPI with xdpyinfo | grep dots ? Mine is 96 (what is actually reported is 93x95)
It seems like some TVs have a lower default DPI which makes the fonts appear smaller. You can change this by adding -dpi 96 in /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf.
For more info, please see this post: https://forums.developer.nvidia.com/t/jetpack-4-4-1-production-release-with-l4t-32-4-4/158279/14?u=dusty_nv