When editing your theme and selecting a date design and/or font design, the date and/or font changes to whatever you selected, but then goes back to the previous version of just a basic clock and system font whenever you utilize the alternative screen again.
So if I set the date and font on my front screen, it will stay until I unfold my phone and use the full opened screen. And just the opposite, if I set the date and font on my unfolded screen, it will stay until I use the cover/front screen - and then it defaults to the system date and system font.
This makes both editing your fonts and customizing your date theme impossible on the Galaxy Fold.
